Regenerated PO file and updated Galician translation
Fixed cmake pch compilation when not builing from the top source folder.

This fixes #218 for me. Thanks to Gallaecio for poiting out. :)
Merge pull request #219 from Gallaecio/master

Regenerated PO file and updated Galician translation
French translation update + several fixes from review.
Fixed a typo leading to a neverding animation where it should have been played only once.
Added diagonal check before pushing stones or dealing with shrooms.

I wanted to test this on scripting level, so I added a new If Event,
checking a function return value and starting a second event
accordingly.

I also made the engine tell when an event id is invalid.
Added thunder in the path3 map and other tweaks.

- Fixed a crash when quitting the game in the rain scene as a sound was loaded
  but never registered.
- Tweaked ripples speed.
- Reduced the rain particle cap a lot to help fps with this particle effect.
Kept on working on the path3 elbrus map.

- Added all the props
- Worked on gates and adapted the corresponding tilesets slightly toward this.
- Added the first dialogue.

This map not far from being finished :)
Changed Orlinn's portrait a bit.

Made him less pale and made his head shape more oval.
Started working on the path3 miniboss.

- Added the eyeball map and battle enemy.
- Added support for custom enemy respawn time.
- Simplified the LICENSES file while seeing it.
- Made the cemetery gates close as a start for sandboxing it.
Started working on the path3 mini-boss.

That one is going to be a bit twisted ;)
- Added the Harlequin sprite and related event in the path3 map.
Added most of the path3 miniboss core mechanisms. I'll add the rest later.
Reverting VS project warning settings and .gitignore changes. This is a fork side only commit.
Adding a submodule for the VS2012 dependencies.
Fixing all level 4 warnings and higher.  This is a fork side only commit.
Update README