Handwriting Recognition Engine 2.1.1 has been released

This release brings several nice improvements to the recognition management API, the example recognition engine and even to the demo application as well as the documentation.

API changes
* changed the error reporting API (uses GError,
g_return_(val_)if_fail(), g_warning() and g_error())
* added pkg-config files for potential client applications
* HreAlternative is now a reference counted structure (fixing the
memory leak from the last release)

Code Quality
* remove old-style prototypes
* several other cleanups
* replaced some #define statements by enumerations

Default Engine
* removed several code pieces that are also provided by GLib

Demo Application
* start to use glade for the user interface
* updated allowed grid value ranges
* added a status bar for feedback

Handwriting Recognition Engine 2.1.1