gitconfig: add br alias to branch; prompt: remove cabal sandbox

gitconfig

@@ -1,4 +1,5 @@
 [alias]
+    br = branch
     ca = commit -a
     cam = commit -am
     changes = diff --name-status -r

zshrc

@@ -96,10 +96,10 @@ function rprompt-git-current-branch {
     if [[ -z $name ]]; then
         return
     fi
- 
+
     gitdir=`git rev-parse --git-dir 2> /dev/null`
     action=`VCS_INFO_git_getaction "$gitdir"` && action="($action)"
- 
+
     st=`git status 2> /dev/null`
     if [[ -n `echo "$st" | grep "ahead of"` ]]; then
         color=%F{white}
@@ -112,24 +112,12 @@ function rprompt-git-current-branch {
     else
         color=%B%F{blue}
     fi
- 
+
     echo "on %{$fg[white]%}$color$name$action%f%b %{$reset_color%}"
 }
 
-function cabal_sandbox_info() {
-    cabal_files=(*.cabal(N))
-    if [ $#cabal_files -gt 0 ]; then
-        if [ -f cabal.sandbox.config ]; then
-            echo "%{$fg[white]%} is %{$fg[green]%}sandboxed%{$reset_color%}"
-        else
-            echo "%{$fg[white]%} is %{$fg[red]%}not sandboxed%{$reset_color%}"
-        fi
-    fi
-}
- 
 RPROMPT='`rprompt-git-current-branch`'
 RPROMPT+="%{$fg[white]%}in %{$fg[yellow]%}%~%{$reset_color%}"
-RPROMPT+='`cabal_sandbox_info`'
 
 extract(){
 	if [ -f $1 ] ; then