removed my own server url from default test server url
delegateLayerControl to Pica option
minor variable name changes
moved out if statement from renderLayerControl method
Merge pull request #1 from unepwcmc/pica-layer-control

delegateLayerControl to Pica option
Update README.md

Added information for new pica constructor options and added a code example.
Merge branch 'master' into add-sync-notice

Conflicts:
	dist/pica.min.js