ignore vim's .swp files
dlangui.core.stdaction module now uses immutable and static module initializer
synchronized dlangui.core.logger.Logger; also refactored it a little bit
SDLPlatform now enables OpenGL context sharing (important for multi-window)
loadImage() errors are now logged
dlangui.graphics.glsupport module now draws with VBOs and VAOs
dos2unix'd i18n module; the file had inconsistent line-endings!
addressed some synchronization issues in i18n to fix a crash with GDC 4.9.0; removed some minor unused features