Give the lvalue widget a necessary cleanup and refactor
More necessary refactoring for the lvalue widget
Change widgets to include their type name as a class attribute on the elements corresponding to the widgets
Fixes after LValue widget refactor
Change lvalue widget to display the its value in a long number format when hovered over
Change the lvalue widget's server side to only send the data it needs to (the client side should be calculating the diff and percentage, as these are presentation details); Change the client side accordingly
Fix long/short lvalue widget value switching when mouse enters/exits its element (':hover' wasn't working, this was removed in jquery 1.9.x)
Change LValue widget to use <span>s for the different values it displays (using <div> for each value is overkill, <span>s are better suited)
Display actual values for metrics in graph widget legend
Undo the scoping change for the graph-widget.js (was messing up the diff, and probably elongs in a separate PR)
Merge branch 'develop' into feature/issue-61-display-actual-values-when-lvalue-widgets-are-hovered-over
Merge branch 'develop' into feature/issue-62-display-actual-values-for-graph-widget
Merge branch 'feature/issue-61-display-actual-values-when-lvalue-widgets-are-hovered-over' into develop
Merge branch 'develop' into feature/issue-62-display-actual-values-for-graph-widget
Merge branch 'feature/issue-62-display-actual-values-for-graph-widget' into develop
Merge branch 'develop' into feature/issue-51-summarizers-should-accept-a-time-alignment-function

Conflicts:
	diamondash/widgets/lvalue/lvalue_widget.py
	diamondash/widgets/lvalue/tests/test_lvalue_widget.py