* Better formatting of labels.
* Fixes Issue #46
# Sorry for the HUGE commit!

* Fixes Issue #58
* Fixes Issue #59
* Fixes Issue #60
* Set sorting to default false
* Added separate @sorted_drawing attribute for charts that need to draw sorted data.
* Sort legend of data is sorted by @sort
* Set generated colors from theme after data has been sorted.
* Better handling of markers vs maximum value.
* Hide labels that are outside of the graph range.
* Escape "%" before sending to RMagick
* Corrected drawing of DOT graphs.
* Added setup for running tests in RubyMine
* Added config to run tests in Ruby 2.0 mode on travis-ci