[update] Handling automatic deployment after update

[aik099]

Approach 1 - monitor and report:

1. introduce new update.watch-regexps config setting (similar to log.merge-conflict-regexps), where list of regular expressions will be defined
2. monitor output of svn-buddy update command and if any of added/deleted/updated files/paths matches specified regular expressions, then highlight that row in red (or not order color)

Approach 2 - auto deploy:

Find a way to specify framework agnostic deployment script (preferably present within project itself) that will be called if changes were made by an svn update command.

If changes were made, then svn update command result will contain Updated to revision ... text. If no changes were made, then text will be At revision ....