SSH Plugin:  Code cleanup/optimization.
gateone.js:  Fixed a few malformatted docstrings here and there.
gateone.js:  Added a new function to GateOne.Utils:  last().  It just returns the last item of any given iterable (arrays, strings, etc).
gateone.js:  Fixed some bugs that were preventing the client-side file cache from working properly in certain situations.
gateone.js:  Added some preliminary code for terminal mouse reporting (see issue #190 on Github).  If you enable debug logging (GateOne.Logging.level = 10) you'll see that Gate One accurately recognizes the row and column when you click in a terminal.  Now for the mode stuff...
gateone.py:  Changed the default value for 'use_client_cache' to True in the get_theme() function (it was a bug--it's supposed to use the client cache by default)
Terminal App:  Modified the terminal.css template slightly to ensure the pastearea dimensions are more precisely defined.  This is necessary for mouse tracking support to work properly.