kOS: Scriptable Autopilot System

# v1.1.6.0 It's been too long without a release.

Built for KSP 1.6.1

It's been a long time without a release. We kept putting it off until
"that one more thing" was merged in, and there was always "that one more
thing", again and again, that kept putting off the release more and more.
Eventually we decided to release what we had since there's so many fixes
the public weren't getting.

This release incorporates 50 separate Pull Requests from many individuals.
As always, thanks to everyone who contributed over the last year. (Has it
really been that long? Almost.)

### BREAKING CHANGES:

(None that we know of, but this is a big update so we could have missed
something.)

### BUG FIXES:

- Was reading POSITIONAT() from the wrong orbit patch when getting a
prediction for the moment when a patch transition should occur.
[pull request](https://github.com/KSP-KOS/KOS/pull/2253)
- Stage:resources gave wrong values in cases of stages without a decoupler.
[pull request](https://github.com/KSP-KOS/KOS/pull/2256)
- Several documentation clarifications. See individual links below for
more details:
- [dead links on Vector doc page](https://github.com/KSP-KOS/KOS/pull/2269)
- [a typo](https://github.com/KSP-KOS/KOS/pull/2300)
- [a spelling error](https://github.com/KSP-KOS/KOS/pull/2333)
- [sphinx old code deprecated](https://github.com/KSP-KOS/KOS/pull/2339)
- [HUDtext style corner documented wrong](https://github.com/KSP-KOS/KOS/pull/2340)
- [cleanup gh-pages branch having source in it](https://github.com/KSP-KOS/KOS/pull/2342)
- [Mention Simulate in BG needed](https://github.com/KSP-KOS/KOS/pull/2368)
- [SKID clarification](https://github.com/KSP-KOS/KOS/pull/2388)
- [Error in basic tutorial example](https://github.com/KSP-KOS/KOS/pull/2392)
- [Removed old obsolete notices](https://github.com/KSP-KOS/KOS/pull/2401)
- Fixed error detecting VT100 terminals in telnet (used wrong substring compare).
[pull request](https://github.com/KSP-KOS/KOS/pull/2273)
- Fixed bug of multiple ON triggers melting their "prev value" trackers together
if the triggers came from the same line of source code.
[pull request](https://github.com/KSP-KOS/KOS/pull/2275)
- Fix a bug with RemoteTech autopilot premissions getting lost.
[pull request](https://github.com/KSP-KOS/KOS/pull/2276)
- WHEN/ON statements inside anonymous functions now working properly.
[pull request](https://github.com/KSP-KOS/KOS/pull/2291)
- (attempt to?) Fix problem where bootfiles weren't copied in Mission Builder
missions.
[pull request](https://github.com/KSP-KOS/KOS/pull/2292)
- Massive refactor of how trigger interrupts work, that allows them
to behave more consistently and allows more complex layering
of triggers. (In this CHANGELOG, This is listed both under "new
features" and "bug fixes" since it's both.)
[pull request](https://github.com/KSP-KOS/KOS/pull/2296)
- Fix stack alignment bug that happened when a bootfile runs a
KSM file that locks steering:
[pull request](https://github.com/KSP-KOS/KOS/pull/2298)
- Fix: Locked steering refusing to let go if the IPU boundary
lands right in the middle of kOS's steering trigger (kOS
not having "atomic sections", the ordering of the opcodes
mattered a lot).
[pull request](https://github.com/KSP-KOS/KOS/pull/2302)
- Fix: Undocking/Decoupling while a kOS unit on the lower half
has locked steering used to cause the lower stage's kOS unit to spin
the upper stage's steering and never let go of it.
[pull request](https://github.com/KSP-KOS/KOS/pull/2315)
- Fix: Hyperbolic orbits now allow negative anomaly angles to
represent measures "prior to periapsis" correctly. (Previously
it represented a value like -10 degrees as +350 degrees, which
doesn't make sense if the orbit isn't closed and won't come back
around.)
[pull request](https://github.com/KSP-KOS/KOS/pull/2325)
- Fix: E,S, and R keys now working right in text editor widget in
Linux port. kOS incorrectly prevented the E, S, and R keys from
passing through to other widgets before. This error was only
noticed on Linux because Unity3d's event queue passes through
widgets in a different order on different OS ports.
[pull request](https://github.com/KSP-KOS/KOS/pull/2334)
- kOS will now let go of the steering when the program dies
due to a lack of electricity. This allows your vessel to get some
power recharging again when it starts getting sun on the solar panels
again. (Previously the steering deflection was still present, meaning
the ship needed a recharge rate higher than the power the torque wheel
expended in order to actually get a net positive recharge.)
[pull request](https://github.com/KSP-KOS/KOS/pull/2336)
- Fix: UTF-8 text files that contain a BOM (Byte Order Mark) are now
parse-able. (Notepad.exe was really the only text editor that
triggered this problem. No other editors put a BOM in UTF-8 files.)
[pull request](https://github.com/KSP-KOS/KOS/pull/2353)
- Fix: If you lock steering from the interpreter, then also run
a program that locks steering, that program used to bomb with error
when it tried to exit and return to the interpreter.
[pull request](https://github.com/KSP-KOS/KOS/pull/2357)
- Fix: Using the meta-key AltGr on some European keyboards was causing
garbage to appear in the terminal interactive prompt, but only on the
Linux port of Unity3d. Again, Unity3d does weird things in its Linux
port for no apparent reason (they're not because of the OS itself),
that we have to accommodate.
[pull request](https://github.com/KSP-KOS/KOS/pull/2386)
- Fix: Bulkhead profile added to part files. It is required for the
new KSP 1.6.x filtering "by diameter" feature. Without it, the VAB
could hang forever when a user clicks that tab.
[pull request](https://github.com/KSP-KOS/KOS/pull/2386)
- Fix: Map View no longer rotates with the vessel when focus is on
the terminal window. It's a stock bug that required a bit of
trial and error to pin down, then an ugly kludge to keep it from
being triggered.
[pull request](https://github.com/KSP-KOS/KOS/pull/2403)
- Fix: OrbitInfo:TOSTRING now prints the body name properly.
[pull request](https://github.com/KSP-KOS/KOS/pull/2408)

### NEW FEATURES:

- Made several of the string parameters to GUI widgets optional.
[pull request](https://github.com/KSP-KOS/KOS/pull/2293)
- Massive refactor of how trigger interrupts work, that allows them
to behave more consistently and allows more complex layering
of triggers. (In this CHANGELOG, This is listed both under "new
features" and "bug fixes" since it's both.)
[pull request](https://github.com/KSP-KOS/KOS/pull/2296)
- Allow "close window" button to exist on the RMB menu.
[pull request](https://github.com/KSP-KOS/KOS/pull/2329)
- New suffixes to read if Body has a surface, an ocean, or children.
[pull request](https://github.com/KSP-KOS/KOS/pull/2355)
- Added KUNIVERSE:REALTIME and KUNIVERSE:REALWORLDTIME.
[pull request](https://github.com/KSP-KOS/KOS/pull/2362)
- Vecdraw now can set updater delegates directly in its constructor.
[pull request](https://github.com/KSP-KOS/KOS/pull/2369)
- All command codes in a script text file will be treated as whitespace
now, just in case there's any in there junking up the file.
[pull request](https://github.com/KSP-KOS/KOS/pull/2374)
- Add a "CID" Craft-ID suffix to Parts.
[pull request](https://github.com/KSP-KOS/KOS/pull/2378)
- Constant:G is now being calculated from the game itself instead of
being a manually typed constant in the kOS source.
[pull request](https://github.com/KSP-KOS/KOS/pull/2410)
- New value, Constant:g0 - useful for ISP calculations.
[pull request](https://github.com/KSP-KOS/KOS/pull/2415)
- Make terminal's "dim" unfocused mode stop being transparent, for extra
readability. (It was never transparent enough to usefully see through,
but it was transparent enough to make it hard to see the letters.)
[pull request](https://github.com/KSP-KOS/KOS/pull/2417)
- GUI tooltips now implemented.
[pull request](https://github.com/KSP-KOS/KOS/pull/2414)
- Fix: All the image files and texture files are using .DDS format now,
and both X and Y resolutions for them have been resized to exact powers
of 2, which DDS requires. (Unity loads DDS files faster, and they
form a smaller download ZIP).
[pull request](https://github.com/KSP-KOS/KOS/pull/2389)