[Fix #347] Move 'users' from tag-order to group-order
[Fix #355] Do not set launchd environment variables

Setting environment variables for launchd processes is unreliable.
Finder and all Finder launched programs have to be restarted for the
new environment variables to take effect.
[Fix #357] Set alias gcO to check out hunks interactively
My modification.
Enabling History Substring Search
Fixed CTRL going words
gti=git