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 #329] Add giddie theme
Merge remote-tracking branch 'sorin/pull/329' into giddie-theme

Conflicts:
	modules/prompt/functions/prompt_giddie_setup