Brush Engine: processing the wacom pressure events moved to the separate class
Brush Engine: fixed missing packets in the wacom queue events
Bruhs Engine: fixed setting pen pressure to 1 between adjacent packets
Brush Engine: attempt to use xcb in linux platform to enable wacom support
Brush Engine: Wacom works on Linux systems
Fixed a delay on start dragging a window or slider
About: build date getted from a compilation date
Version of the application set in a pro-file
Disabled fill color when creates layer

This do chash the app in debug mode on Windows
Fixed bug with crash application on deleting first page
Version data moved from pro-file to main.qml
Layer Manager: disabled Clone button
Brush Engine: restored the rectangle update a painted item
Bruhs Engine: fixed resetting hardness parameter to 1 when value is 100
File Dialog apapted to unix systems
Canvas: update signal emits by canvas code and not by brush engine code
All own cpp-modules moved to AprilBrushLib
Changed some hotkeys
Dock: clicking does toggle panels instead show
Brush Engine: refactored code