Add docstrings to login functions
Pass reddit object as an argument in redditvfs's constructor
Merge pull request #8 from Hardolaf/master

Pass reddit object into redditvfs class. Add docstrings to login functions.
Merge branch 'master' of github.com:redditvfs/redditvfs

Conflicts:
	redditvfs.py
Further work on readdir()/getattr()