Abstract Binstar token hiding to config, and use it in other places
Automatically get the binstar token from the binstar command line client

Fixes #854.
Use the channel_alias for the binstar channel token regex
Show the binstar username even when the url contains a token
Fix binstar token hiding for non-default channel alias
Use re.escape instead of replace('.', '\\.')
supports unix-style prefix paths in regular text files on windows
continue to replace prefix_placeholder with standard os paths
Don't use TemporaryFile in try_write

TemporaryFile tries thousands of times before if fails, making it really
slow. Just use open and unlink.

Fixes #896.
Ignore InsecureRequestWarning when ssl_verify is False
Merge pull request #892 from daineseh/master

Fix variable initialization
conda remove removes features tracked by removed packages

So for instance, conda remove mkl now removes the mkl feature.

Fixes #894.
Merge branch 'master' of github.com:conda/conda
Never write Binstar tokens to file
Don't include the <TOKEN> bit in the canonical channel name
Merge branch 'master' into binstar-stuff

Conflicts:
	conda/install.py
Remove debug print
Handle channel being None
Avoid printing the Binstar token in any error message
next version 3.6.3