Added variable to control plate detection size increase.
Adjusting it to a smaller value means slower detection but higher probability that the plate will be found (and vice versa)
Merge branch 'develop' of https://github.com/Silex/openalpr into develop

Conflicts:
	src/openalpr/regiondetector.cpp
Removed debug flags and added comment to new parameter
Removed code that unnecessarily eroded the character mask
Masking characters from canny filter before doing the hough transform to detect plate edges.
This should reduce the noise a bit and get rid of spurious edges detected in the middle of the plate
Add daemon support