Teach git completion about difftool. Change __fish_git_ranges to output branches as designed.
Improved brew completion

Using arg completion
Context-based completion for most of commands (i.e. only installed
packages for upgrade or remove, only outdated for upgrade and so on)
Squashed commit of the following:

commit 6259665e972d478f1ce4ab3d233033ec1dd7eef2
Author: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Date:   Thu Apr 4 11:02:35 2013 -0500

    change spaces to tabs

    Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>

commit 465333d982db441f430767b645fdcd95e44cc5d6
Author: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Date:   Wed Apr 3 11:15:22 2013 -0500

    tmux: implement completion for panes

    Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>

commit 684baf98a6ac070847f20a02838abe58e8c22d5b
Author: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Date:   Tue Apr 2 23:56:27 2013 -0500

    tmux: don't suggest dirs

    Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>

commit 8c4a9854a1f173866439f976301b743354c945c8
Author: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Date:   Tue Apr 2 21:57:40 2013 -0500

    move front flags to the top of the tmux file

    Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>

commit 7f2321e9cd20a5aa2bcbfe940e20ec57bcca2609
Author: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Date:   Tue Apr 2 20:06:54 2013 -0500

    fix some of the initial parameters

    Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>

commit f70fc55bed40c0ccd2a00921c0e7373e7c18b5d7
Author: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Date:   Tue Apr 2 21:47:25 2013 -0500

    implement tmux KEY BINDINGS

    implement the commands in the KEY BINDINGS man page section

    Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>

commit ec423040dba742f67c06dbb932417f6d19b90fba
Author: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Date:   Tue Apr 2 00:10:43 2013 -0500

    implement tmux completion for CLIENTS AND SESSIONS

    Fully implement all tmux commands found in the tmux man
    page section titled: "CLIENTS AND SESSIONS"

    Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Don't pass 0 to seq because BSDs are dumb. Pipe tmux stderr to /dev/null
tmux: add support for ENVIRONMENT

Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
tmux: implement Status Line

Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
tmux: use status-left short flags

Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>

Conflicts:
	share/completions/tmux.fish