Remove redundant keybindings for fuzzy finder

Some time in config history, CtrlP replaced FuzzyFinder. These were the
compatibility keybindings. However, CtrlP already has keys for these
commands.

Accept selection and open in vertical split: <c-v>
Accept selection and open in horizontal split: <c-s>

Let’s use those keys, so we can actually navigate the CtrlP window with
the standard vim home row keys!

Move up in the CtrlP selection window: <c-k>
Move down in the CtrlP selection window: <c-j>
Rust Language syntax highlighting

This is a mirror of the rust-vim mode included in the main rust-lang
github repo.
fix nerdtree bindings
Remove custom search bindings.

We had overridden the default '/' behavior and it's maddening.
add clause about contributing to the readme
Merge pull request #46 from neo/fix-nerdtree-binding

Fix nerdtree bindings
Merge pull request #47 from neo/remove-easymotion-search-override

Remove custom search bindings.
Merge pull request #44 from neo/remove-redundant-fuzzy-finder-keys

Remove redundant keybindings for fuzzy finder
Merge pull request #48 from neo/pr-requirements

add clause about contributing to the readme
Merge pull request #45 from neo/feature/add-rust-mode

Rust Language syntax highlighting
Merge remote-tracking branch 'origin/master' into vim-rspec

Conflicts:
	.vim/common_config/01_plugin_config.vim