Add install script

Basic install script, taken from @necolas original install script, will
setup environmental conf file based on OSTYPE.  Creates all  necessary
directories. Checks all dependencies (xcode, homebrew, git, pip) are
loaded, if not installs them. Downloads the repository and initializes
if necessary.

- Create help text (-h | --help)
- Create man page (man install)
- Create setup script to generate conf files and create directories
- Ignore the generated conf files for installation
- Add to @necolas utils library to include more necessary methods

Issue: #1