Added cropToImageEdges method to Line class
Corrected method extendToImageEdges in Line class.
Tests added for cropToImageEdges and extendToImageEdges
Corrected bresengam_line method in ImageClass.

There was a bug with cropping lines. So if the line bigger than image
then it just set endpoints to image edges without saving slope of the
line.
Merge branch 'extend_crop' of github.com:polart/SimpleCV into polart-extend_crop
uhg standard
Merge branch 'develop' of https://github.com/sightmachine/SimpleCV into develop
Added Hough standard transmission to findLines.

Endpoints of the line are found with Bresenham's line algorithm.
Added test for Hough standard transmission
Added sample images for Hough transmission
Merge branch 'develop' of https://github.com/sightmachine/SimpleCV into develop
Merge pull request #489 from polart/hough_standard

Hough standard transform for findLines()
Trying to appease the TravisCI beast
Merge branch 'develop' of https://github.com/sightmachine/SimpleCV into develop
avg,lightness,luminosity methods
avg,lightness,luminosity methods added
Dead Quick Links fixed

Except 'About' and 'Installation' all the quick links were dead. Also added 'Virtual Environment' and 'Fedora' to quick links.
Merge pull request #497 from anishchandyoterpa/patch-1

Dead Quick Links fixed. Thanks for keeping us up to date.
Merge branch 'conversion' of github.com:salil93/SimpleCV into salil93-conversion