Added snipmate vim plugin

- Added snipmate submodule to vim bundles
- Configured snipmate in .vimrc
- Added javascript.snippet file
Introduced 'f' and 'v' functions

- 'f' finds all files matching the given string,
  ignoring **/node_modules and **/.git directories
- 'v' still works as an alias for vim
- 'v some-file' opens 'some-file' for editing in vim
- 'v *some-file' searches for *some-file* using 'f' and opens all
  matches in vim
- If 'v *some-file' is matches within a project folder one level deeper
  than the current directory, it cds into that directory and then opens
  all matching files in vim