DOC: add example of using root_dir in condarc.
Add a deactivate script for windows
add deactivate.bat to setup.py
add link to mailing list
fixed issue #402
improve error message to include --prefix
Support arbitrary source files

If the file type is not recognized, it just copies it to the SRC_DIR, which is
"work" (this is similar to what happens for git/hg/svn).

Fixes #405.
Merge pull request #393 from rgommers/rootdir

DOC: add example of using root_dir in condarc.
Make test commands that contain quotes work
Merge branch 'master' of github.com:ContinuumIO/conda