more detailed macvim-kaoriya cask
* updated to new version 7.4.769-20150707.
* with detail info that lacked before.
* make symlinks from mvim binary to the directory /usr/local/bin.
such as mvim / gvim / mview / gview / ... etc. You can see the
complete list in `brew cask info macvim-kaoriya`.
* with `--override-system-vim` option, you can have more symlinks such
as vi / vim / view / ... etc. This feature is the same as the macvim
formula.