Valloric/YouCompleteMe — pull request #1272 by LiangZhi1027 (2014-12-06 18:31:46+00:00)
Title: fix <c-y> causing strange popup menu and solve <tab> conflict with ultisnips

Use to accept the current candidate will cause a second popup menu. Because after ycm insterts the candidate, cursor position has changed and ycm will find a new candidate again. I delete the candidate exactly same as the text to match. Thus, no second popup menu will occur.

By this enhancement, I can use vim script to use for both cycling through ycm candidates and ultisnips placeholders. Also I can use for both accepting ycm candidate and expand ultisnips. I add the solution to README.md.