Extract env listing code into common for reuse
Add envs command to just show environment information
Rename command from envs to env per @joelhullcio
Refactor to allow subcommands
Pull out the env code
Doh
conda info doesn't display information about files any more
Fix typo in install help
Merge branch 'master' of github.com:conda/conda
help output cleanup for help2man

- Don't put paths in parentheses, as help2man won't recognize and italicize
them.

- Don't use paths in examples as they get italicized, which looks bad.

- Use better spacing in the examples so that they show up on separate lines.
Include the sys_rc_path in conda info --json
Don't put newline after examples header

help2man doesn't recognize it as a header otherwise
Put parens around conda config --help paths back

It doesn't seem to make help2man italicize the names any better.
Fix undefined name error in main_remove
FIX: conda config did not use CONDARC environment variable

The `--file` option now defaults to os.environ.get('CONDARC')
Updated default and doc string
Merge branch 'master' into fix/conda-config-rc

Conflicts:
	conda/cli/main_config.py
Add user rc path to conda config --file help
Merge pull request #960 from conda/fix/conda-config-rc

Fixed conda config --file option default
Cache the proxy username and password

Fixes #967.