updated the checksums for the sdl2 release candidates
mxe-activate: clear env vars on make invocation
Merge branch 'master' of github.com:mxe/mxe
mxe-activate: unset env vars for interactive use
doc update: add notes about $(TARGET)/bin in $PATH and clean environment
Merge branch 'stable'
Makefile: use a minimal whitelist of env vars
sdl2 is officially released now
packages mingw-utils pthreads-w32 winpthreads: use target specific deps
Improve naming of issue tracker and mailing list
Add menu entry for the issue tracker
Merge branch 'stable'