Fix filght path bug

Path dont get lost near pole.
Line isnt draw anymore outside globe.
Merge pull request #804 from Yankes/FixFlightPath

Fix filght path bug
don't smooth scroll unless we hit an edge
Fixed bugs with Options screen reloading and confirming when it shouldn't.
Fix incorrect game resolution.
More fixes to options misbehaving.
Fixed language detection crash.
Fixed Geoscape UI.
Whoops
methods for loading modded saves post-content removal
keep track of mods installed at the time of save
add loading confirmation for saves with missing mods
delete runaway timer
fix game deletion
Add subcategory attribute
Accurately determine when storage is exhausted
Add language keys for tabbed sell/sack and purchase menus

Language fixes
Add tabs to purchase screen

Updated StarkMad's patch

Accurately track storage during purchases
Add tabs to sell screen

Started with StarkMad's patch then somewhat modified it to support
future tabs.
Add check for exceeded storage on mission end.

Adds option storageLimitEnforced