Use $ACKRC if set, otherwise use $HOME/.ackrc

The $ACKRC environmental variable allows a user to specify a path to his or her Ack config file. If not set, Ack looks for a file in the default location (~/.ackrc).

This update makes ack completion follow that same behavior.
Merge pull request #124 from brandt/master

Use $ACKRC if set, otherwise use $HOME/.ackrc
Update git-flow completion

Add missing options and commands for support branches.
_socat: initial commit

From here:

https://github.com/Valodim/zsh-socat-completion/blob/3c564c995bd145c92621c6ae51d55f06f0285d66/_socat
Merge pull request #125 from benohara/master

Update git-flow completion
_logger: initial commit
Fix issues relative link in README
Merge pull request #126 from cknadler/master

Fix issues relative link in README
Add ag(the silver search) completion.
Merge pull request #127 from glidenote/ag-completion

Add ag(the silver search) completion.