Fix a typo in git documentation
[Fix #335] Prevent rbenv from hashing gems at startup
Fix auto completion for SSH hosts when saved with a non-standard port
Check for the existence of .zcompdump before compiling
[Fix #338] Remove vi jk and kj bindings
[Fix #348] Clarify how GNU utilities are wrapped
Update external completions
Update external syntax-highlighting
Add an alias to ammend a git commit, including the message
[Fix #347] Move 'users' from tag-order to group-order
merged with upstream