Fix an issue when clicking on a graph's first item

Clicking on the first chart is index=0, but the falsey check caused it   
to go to the default behaviour, which is to assume the user clicked on  
the last item in the graph.
Update plato.js
Update package.json
Update plato.js
Update plato.js
Update plato.js

Removed checking for
Update plato_test.js
fixes display view not showing jshint issues
fixes display view showing best instead of worst maintainability scores
added jshint to total and average reports
Merge branch 'master' of https://github.com/ilanbiala/plato into ilanbiala-master

* 'master' of https://github.com/ilanbiala/plato:
  Update plato_test.js
  Update plato.js
  Update plato.js
  Update plato.js
  Update package.json
  Update plato.js
made globbing default
Merge branch 'master' of https://github.com/tomhicks-bsf/plato into tomhicks-bsf-master

* 'master' of https://github.com/tomhicks-bsf/plato:
  Fix an issue when clicking on a graph's first item
fixed failing test
merged Velveeta:master
manually applied PR #107 - changed default jshint behavior
Merge branch 'master' of https://github.com/nerdgore/plato into nerdgore-master

* 'master' of https://github.com/nerdgore/plato:
  added jshint to total and average reports
  fixes display view showing best instead of worst maintainability scores
  fixes display view not showing jshint issues
updated readme