Added functions for resolving horizontal screen locations to coordinates and vice versa
Added getter for region layout
Implemented protein domain rendering track.
Added support for protein domain track to builder.
Updated example to render a protein domain track.
Updated Visquick version in Bower configuration.
Added default hovercard configuration for protein domain tracks in builder.
Extra configuration parameters can be specified when adding a protein domain track using builder.
Implemented hovercards for track
Updated test to display hovercards for protein domain track
Added default configuration for sample plot track hovercards.
Individual configuration parameters can be passed in for every added track.
Cleanup
Updated test to display hovercards for sample plot track
Implemented hovercards for sample plot track