updating test revisions for latest osm tiles
Merge pull request #164 from OpenGeoscience/map_improvements

Map improvements
starting a new demo application showing off feature layers
adding line feature to demo
adding path feature to demo
starting graph feature demo
experimental feature overlay
added location info label
implemented graph feature
draw.html -> features.html
adding new jasmine test framework for selenium
Submitting failing screenshot tests to cdash
Merge pull request #165 from OpenGeoscience/interactive-feature-demo

Interactive feature demo
Merge pull request #167 from OpenGeoscience/cdash-submit-images

Submitting failing screenshot test images to cdash
this -> m_this in gl classes
Merge pull request #169 from OpenGeoscience/this-m_this

this -> m_this in gl classes
Merge pull request #166 from OpenGeoscience/selenium-jasmine-testing

Adding new jasmine test framework for selenium
Improve tile resolution
WIP: High res tiles
Using visible tile index logic