vim-patch:7.4.361

Problem:    Lots of flickering when filling the preview window for 'omnifunc'.
Solution:   Disable redrawing. (Hirohito Higashi)

https://code.google.com/p/vim/source/detail?r=v7-4-361
Merge pull request #1187 from Shougo/vim-patch-7.4.361

vim-patch:7.4.361