fix(whole): migrate to bootstrap3 + remove angularJS

-- bootstrap3 conform pages: 65%
-- angularJS free pages: 70%

 Need to clear some things with robert first before I can complete this.

 Things to do now:
 -- implement img-thumb
 -- refactor getting started docs
 -- refactor docpad configuration for docs search
updt(bootstrap+angularjs): remove angular and update to bootstrap 3.0

-- rewrite from angularJS to jQuery: 90%
-- reformate CSS: 80%

Next Steps:

-- restructure the BPMN 2.0 Modeling reference
-- add search dialog to BPMN 2.0 Modelling reference
-- removal of unused files
-- build up docpad live environment
-- build up new grunt tasks for minification
fix(renderer): change IE8 Bugfix for hover

removed loading of an external gif and use an more speedy rgba(0,0,0,0) method :)
cleanup(docpad): cleanup docpad and application.js
updt(bootstrap3): update camunda.org

-- removed: angularjs
-- created: docpad live environment
-- updated: grunt configuration
-- updated: bpmn 2.0 modeling reference
-- added: search behavior to reference

jQuery migration [DONE]
Bootstrap migraton ... Waiting for final Test on mobile devices (Tablet/Smartphones) and Browsers (> IE8)
updt(bootstrap3): rebuild guides + add IE8 compatibility
fix(team): update team members and fix their modals
updt(bootstrap3): merge bootstrap3 branch into master

Related to: #CAM-1314