Includes features such as:
* `:Bundle`, which wraps `bundle`.
* An internalized version of `bundle open`: `:Bopen` (and `:Bsplit`,
`:Btabedit`, etc.).
* `'path'` and `'tags'` are automatically altered to include all gems
from your bundle. (Generate those tags with
[gem-ctags](https://github.com/tpope/gem-ctags)!)
* Highlight Bundler keywords in `Gemfile`.
* Support for `gf` in `Gemfile.lock`, plus syntax highlighting that
distinguishes between installed and missing gems.
Having this file be sourced last allows user to
overwrite the configs in `.vimrc` without having to modify it.
* fixed file's path to work with `filereadable`
https://github.com/ggreer/the_silver_searcher
* ag is faster than ack
* ag searches all files by default (but still ignores gitignored files). This
removes the need for ack's `--type-add=` options.
* The command is 33% shorter than ack!
* Set up Vundle in vimrc.
* Delete old copies of vim scripts.
* Bundles are automatically set up as referenced submodules.
* Ignore .netrwhist files given presence of submodules.
* Set up vundle in install script.
