NF: added .gitignore file
RF: make notebook static path finding more generic
NF: script to check dependencies, install profile
DOC: update README with instructions for script
RF: expand check script to check for R libraries
RF: clean up copies of js and tex in profile

Testing against IPython 1.0.0 and up.
RF: Minor edits for backtick comamnd
Merge pull request #1 from matthew-brett/automating-install

WIP: making an install script; cleanup of profile