First release

This is the first release of VimSwitch.

Available commands:

vimswitch                       # Show current profile
vimswitch <profile>             # Switch to profile. Profile must be of the form: user/repo
vimswitch default               # Restore the user's original vim settings
vimswitch --update <profile>    # Re-download and switch to profile
vimswitch --update              # Re-download current profile
vimswitch --help                # Show help message
vimswitch --version             # Show version