Added support for Windows-style paths.
Refactored new and process actions to ask the user for a context.

Also added logic to copy items to their correct project folder if a project is
given and the corresponding project folder exists.
Bumped version number.
Fixed documentation typos, error code typos.
`done` supports a list of actions, bugfix.

* `done` command now accepts an unlimited list of tasks to mark as done.
* `GTDCLI.stringToFilename` now removes forward slashes.
Fixed bug in done command. Replaced output system with logging system.

* Fixed the bug in `done` where it would incorrectly reference relative files.
* Moved to using SLF4J and Logback loggers for all output.
Added `delegate` command to delegate existing actions.

* Created `delegate`. This will move an action from a next actions context
  folder to the waiting folder. Any duplicate items in project folders will be
  renamed and updated to reflect any action change.
* Updated `ls` to take multiple named contexts or projects and list them all.
Updated web.xml for current deployed config.
Added online help and documentation for delegate command.