refactored and method added to be called from other component
Merge branch 'wigExplorer' of https://github.com/biojs/biojs into wigExplorer

Conflicts:
	src/main/javascript/Biojs.wigExplorer.js
merging issue solved
comment deleted
new data file added and zomming and panning parameter changed and css changed to make it look more clear
changed css, added ticks to the bottom and legend rotated to 90degree for better view
colour can be set and errors added when data not found or empty data
wigExplorer supports, fixed step wigfile with one reference in it
last commit was variable step and this commit is for fixed step wig file
wigExplorer supports spans
New data set added, wigExplorer.js code added
wigExplorer ready with variable and fixedStep wig file
works with more than one component in same web page
Merge branch 'wigExplorer'
Merge branch 'master' of https://github.com/biojs/biojs