Sort the PATH for stability

The only new directories past the Microsoft ones are those of
Tortoise{GIT,SVN}, as those programs are accessed through Windows
Explorer, so no need to resolve them normally. (Perhaps they should not
be in the PATH at all.)

For other Windows apps, let MinGW/Msys be on top.

modified:   .bash_env
Disable MANPATH, counter-productive in MinGW
Reconcile with Ubuntu; make compile_command not try to time
Sync ELPA