Removed some profanity from the docs


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6519 212acab6-be3b-0410-9dea-997c60f758d6
Added /WX compiler switch (treat warnings as errors)


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6520 212acab6-be3b-0410-9dea-997c60f758d6
!makensis on POSIX does not support -OUTPUTCHARSET


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6521 212acab6-be3b-0410-9dea-997c60f758d6