Minor reformatting in pylon plugin build script
Update pylon-plugin to libpyloncam 0.4
Improve robustness of roi setting for pylon plugin
Implement auto exposure property for pylon plugin

Conflicts:
	plugins/pylon/CMakeLists.txt
	plugins/pylon/changelog.txt
	plugins/pylon/uca-pylon-camera.c
Add missing property specification for exposure-auto
Merge pull request #59 from miq/plugin-pylon-improvements

Plugin pylon improvements