Add more possible automatically-found vim executables

[fenoloftaleina]

Now mvim -v, and your alias vim vims, either headless, or not, should be found automatically as possible executables hopefully saving someone's time. It helps when you're using El Capitan, compiled vim by yourself, and resorted to simply adding an alias to shadow the system-wide vim.

[fenoloftaleina]

Travis fails on installing vim-gtk via apt. I tried restarting the build by closing, and reopening the pull request, but it didn't help. I don't have the access to do anything else about it.

[mudge]

Hi Dominik,

That part of the build comes from the .travis.yml but is incidental to your change.

Looking at the official Travis documentation, could try adding apt-get update like so?

before_install:
  - sudo apt-get -qq update
  - sudo apt-get install -y vim-gtk

[fenoloftaleina]

Sure! Will do

[fenoloftaleina]

@mudge, done! I had to force travis to bump bundler as well.