release candidate for 0.2.3

New features:

• Print support
• Save notes dialogs geometry
• Configurable storage path
• Shortcuts for copy/print/delete
• Insert contents of files by drag and drop on note

Bug fixes:

• Ctrl+Z is working now
• Note list tray menu doesn't close

Changes:

• Added max/min buttons on note dialogs
• Disallow multiple QtNote instances
• Default plain text storage path on windows changed to Roaming directory instead of Local