Create README.md
Merge pull request #16 from evanswebdesign/master

A simple readme
Add some links to README.md
Add pathogen link from README.md
More detailed installation instructions in README
Add an option to not load TabularMaps.vim

Setting g:no_default_tabular_maps=1 will disable loading of
TabularMaps.vim.

Suggested by jeetsukumaran on github.
Merge remote-tracking branch 'upstream/master'