Removed highslide folder with all high slide files.

www.highslide.com/#license is not GPL compatible.

It's required that all code be compatible with GPL to be included in the WordPress repository.
Removed HighSlide reference. Added GPLv3 license as a feature point.
Removed obsolete high slide code.
Changed obsolate highslide text to meaningful information about ColorBox slideshows.
Made link to flickr taking less space.
Bumped version to 0.0.3.
Merge branch 'refs/heads/development'. Removed HighSlide.

www.highslide.com/#license is not GPL compatible.

It's required that all code be compatible with GPL to be included in the WordPress repository.

Therefore I remove the code and altered the plugin so it is not required.