Merge pull request #14 from SupSuper/master

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Merge pull request #15 from SupSuper/master

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Merge pull request #16 from SupSuper/master

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Merge pull request #17 from SupSuper/master

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Merge pull request #18 from SupSuper/master

- Fixed save details crash when hovering empty rows.
Merge pull request #19 from SupSuper/master

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Merge pull request #20 from SupSuper/master

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Compil warnings
Update BattlescapeGame.cpp
Update SavedGameState.cpp
Merge pull request #746 from GixG/warn

Compilation warnings
fixed losing in the assault of alien base.
- Added TFTD reserve buttons. Expend TUs is pressed with right-click like in TFTD, probably to avoid happy accidents.
- Fixed UI buttons "depressing" with a mouse button that causes no action (eg. scroll wheel).
makefile fix
make that file, dammit.
UI fixes
Merge branch 'master' of https://github.com/SupSuper/OpenXcom
make UFOs airtight

fix the leaky walls
fix hang on MC bug
fix auto end?

now watch it break.