Preferences introduced

• Preferences dialog introduced [feature]
• Incorrect slider rendering [bugfix]

Another pack of fixes and small features

• BUGFIX: Incorrect spectrometer mouse pointer coordinates notation in some cases
• IMPROVEMENT: Rewritten spectrometer curve drawing for better appearance
• FEATURE: Added note name to spectrometer mouse pointer coordinates notation

Cleanup and minor changes

• Removed unnecessary code used for debugging

Cosmetic gui changes

• About dialog added
• Few rendering issues fixed

Initial release, first stable point reached

Current features:

• Spectrometer
• Goniometer
• Up to 4 stereopairs, which will be showing in different colors
• Spectrometer frequency field zoom
• Saves/restores state
• Windows VST2 (both x86 and amd64) supported
• Linux native VST2 (both x86 and amd64) supported