added russian locale
Refactor
#175
`CastRay2` returns the furthest voxel coordinate when a ray didn’t hit a block
Merge remote-tracking branch 'origin/master'
Merge pull request #173 from noway421/russian_locale

added russian locale
Merge branch 'master' of https://github.com/learn-more/openspades into learn-more-master

Conflicts:
	Sources/Client/Client.cpp
Merge branch 'master' of https://github.com/yvt/openspades
Fixed "following by" string
Merge pull request #178 from noway421/ru_locale_fix

Fixed "following" string
Fallback font’s format was updated to support negative offset, and `BdfToOSFont` now supports BBX directive
Fallback font packages in PakLocation.txt was updated
Merge remote-tracking branch 'origin/master'
Fixed compilation with GCC/clang on Linux.

They don't like it, when an unique_ptr contains an incomplete type.
Added varargs header.
Added myself to the credits.
Merge pull request #179 from theunknownxy/refactorfix

Some more fixes
`IRenderer::DrawImage` now accepts null image to draw solid color rectangle
Fixed a bug that null image might crash `DrawImage` with some overloads
`_TrN` is now working