Removed old references in .gitignore
Convert bash_profile to new template format.
Remove old unused files.

No longer using rake to install or erb template files.
Allow target to be set in install script.

The dotfile target (where dotfiles will be symlinked) is an option in
the install function. By default, it's the user's home directory.
Tools: rbenv reload bash_profile instead of starting new shell session.
Added MIT license.
Updated README

Fleshed out README to include information on this project.

Updated for new install script.