Update engine.fr.po

Update french translation of the engine
Merge pull request #466 from cjsthompson/master

Update the french translation of the engine
Merge pull request #465 from stefanbeller/master

Add some temporary files for benchmarking to gitignore.
Update Ukrainian translation
Merge pull request #467 from igorko/master

Update Ukrainian translation
Add classes.txt to default mod xgettext
Merge pull request #469 from dorkster/bugfixes

Add classes.txt to default mod xgettext
Disable some actionbar notifications when transformed
Dont create empty objects just to copy into an initializer list, this costs an extra creation, copy, and destruction, and in some instances can cause crashes when the constructed type expected to be worked on/initialized by another method before destructed.
Merge pull request #474 from josephbleau/initlists

Dont create empty objects just to copy into an initializer list
Merge pull request #473 from dorkster/bugfixes

Disable some actionbar notifications when transformed
Fix MenuNPCActions localizing
German v0.18 engine translation by bjm
Spanish translation by Carlos Sanchez
Polish translation by Pawel "Pawonashi" Puszczynski
Update Ukrainian translation and xgettext for data files
Merge pull request #475 from igorko/master

Fix MenuNPCActions localizing
Remove recreate_all_languages, make readme executable instead.
xgettext: generate valid UTF-8

This version puts UTF-8 into the header, so it should definitely write
UTF-8 encoded strings.