gitignore doc/tags.

git status with this plugin in a submodule looks bad otherwise.
Merge pull request #18 from henrik/master

gitignore doc/tags.
Add vim as a possible test runner

* Also, include better escaping for some special characters
Prefer 'call' to 'exec'
Extract runner function
Only use ! style function declarations
Guard against non-existent test runners
Update for rails.vim changes
Only escape special characters in filenames

Fixes #19
Use updated rails.vim API for test file

Requires a rails.vim as of ebcc113988f77847adb2616ea2d989edaf624a38 or
later
Cleanup
Use tpope's vim-dispatch plugin if installed

Signed-off-by: Joshua Davey <josh@joshuadavey.com>
Avoid error for older versions of rails.vim
Revert "Avoid error for older versions of rails.vim"

This reverts commit a60f1b2485bbaad3d54656f1b4b6bd873b149cd8.
Only add prefix when test file is present
Cleanup
Add 'echo' debugging runner
Ensure alternate file exists
Extract check for rails.vim
Update Vimux's function to run command

Vimux's `RunVimTmuxCommand` was deprecated as of 1.0.0 and was replaced by the
`VimuxRunCommand` function.