Merge branch 'master' into Dev
Toolbar framework

Toolbar Framework
Added Toolbar / per save enabling. Contracts

- Added toolbar button to Space Center using new KSP toolbar API (from
0.24.0)
- Per game enabling/disabling of mod
- Resource rate / day now respects Kerbin / Earth day settings.
- Added Contract System framework
- First Pass resource audit.
- Tentative: All CO2 amount/maxAmount = 2 * crew capacity
  regardless of O2 amount/maxAmount. CO2 buildup is DEADLY.
- Default cabin air = 20x crew capacity. (has already been in effect
for awhile)
Commit of current 1.17.x files

Commit and backing up of current source and configuration files for 1.17
Updated .gitignore

Updated .gitignore
updated other files

Seriously Github, what the hell does it take to make you ignore .csproj
/ .userpref files?
Merge remote-tracking branch 'origin/Dev'

Conflicts:
	.gitignore
	KerbalInstallFolder/GameData/IoncrossCrewSupport/Plugin/IoncrossCrewSupport.dll.DEBUG
	KerbalInstallFolder/GameData/IoncrossCrewSupport/Resources/IoncrossResourcesBase.cfg
	Source/IoncrossCrewSupport/IonBase.cs
	Source/IoncrossCrewSupport/IonCollectors.cs
	Source/IoncrossCrewSupport/IonCrewSupport.cs
	Source/IoncrossCrewSupport/IonGenerators.cs
	Source/IoncrossCrewSupport/IoncrossCrewSupport.userprefs
	changelog.txt
Merge branch 'master' of https://github.com/Starwaster/Ioncross-Crew-Support