Added cross to shape library.
match code style
Relative size plugin
fix 'mousedown' in _downHandler

'mouseup' was dispatched instead of 'mousedown' in _downHandler
bind 'mousedown'
Merge remote-tracking branch 'origin/master' into fix-mouse-down
Fixing FA2 config issues
Updating gexf parser's version
Parser now handles liststring type.
Merge remote branch 'origin/pr/259'
Just removed tabs from PR #259
Minor fix in Gruntfile.js
Merge remote branch 'origin/pr/264'
Replaced tabs by spaces in relativeSize plugin
Merge remote branch 'origin/pr/305'
add methods activateNodes, activateEdges, activeNodes, activeEdges
Use active_color and active_size in renderers
add unit tests
add example
add settings defaultActiveEdgeColor, defaultActiveNodeColor
defaultNodeActiveColor and defaultEdgeActiveColor for consistency