Changelog for hxournal-0.5.1

0.5: 12 Dec 2011 * First public release. basic pen operation, eraser operation, rectangular selection and file operations are implemented 0.5.1: 16 Dec 2011 * Use of configuration file '.hxournal'. Enable Use X Input menu. Dependency on xournal-parser and xournal-render is restricted to 0.2.0.* only * checking gtk+-2.0 using pkg-config