Updated command tables in commands.py and hgext extensions.
- Marked for translation where extensions already had _()
- Corrected indentation
- fixed a few synopsises
abort: repository a not found!
255
abort: error: Connection refused
255
abort: repository a not found!
255
abort: destination '../a' already exists
255
abort: repository a not found!
255
destination directory: q
abort: destination 'q' already exists