Merged in effi-x/vim-openfoam-syntax (pull request #1)

Compatibility with Vundle and depreciation of the forced "colorscheme"
Merge remote-tracking branch 'upstream/master'

* upstream/master:
Making the buffer-adding for Autocompletion reavailable to "old" install

By fetching the path of the executed script it is possible to use
a relative path. Hence now it doesn't matter whether the plugin was
installed with the install.sh or with vundle/pathogene.