Updating to latest ycmd.
Merge pull request #1204 from eberan/upstream_master

Updating to latest ycmd.
Docs now state Ubuntu 14.04 has good Vim version.

Fixes #1205
Unlike the other functions, youcompleteme#EnableCursorMovedAutocommands and youcompleteme#DisableCursorMovedAutocommands are not overwriting. This causes an error if the file is reloaded.
Propagate exception stacks though futures.
Crude razor support
Pass extra_data from completion result to vim completion
Add vim function to get previous completions for CompleteDone autoevent