Add d3-tip library
Slight change to Readme and License files
Merge master (deal with conflict in ReadMe)
Merge branch 'devel' into d3-tip
Merge branch 'devel' into d3-tip
Add d3-tip.css
Add d3-tip.js to panels test directories
Makefile: soft links to d3-tip.css in test directories

 - Add d3-tip.css in .gitignore files
 - Also, coffee script options (-m for debugging)
Much more in d3-tip.css; don't really like my color choice
Use d3-tip in lodchart and iplotScanone
Merge branch 'devel' into d3-tip

Conflict in inst/panels/lodchart/lodchart.js (fixed by re-running make)
Oops; I hadn't re-made that lodchart.js file
Include marker name as default title in iplotPXG; modify legend
Change help file to iplotPXG to reflect revised default jsOpts argument