Avoid column navigation problems by surround escape sequences with \[ and \].
This fixes the problem of not being able to go to beggining of the line, even
hitting the HOME key.
An attempt to fix this problem was made in b0625f5818, without success. Now
it's fixed, so I'm re-enabling git-completion.sh.
Fix path for Ant.
Change shortcut to enable/disable paste indentation.
Also show a visual feedback in the status liin.