admin-ui: Add demo of pie-chart with Highcharts plugin
admin-ui: Remove plugin jqplot
admin-ui: Add Highcharts plugin (full src)
admin-ui: Add 2 pie charts in chart template

One of them is a simple pie chart and the other one is a drilldown
pie chart.
admin-ui: Add icon-font
admin-ui: Replace caret in summary with icon-font
Merge branch 'feature-admin-table' of https://github.com/apyrgio/synnefo into feature-admin-table

Conflicts:
	snf-admin-app/synnefo_admin/admin/templates/admin/base.html
admin: Fix js bugs