Merge branch 'bugfixes'

Conflicts:
	sources/webcore/var/www/canopsis/widgets/line_graph/line_graph.js
Merge branch 'master' of https://github.com/capensis/canopsis
fix: ensure reference to highstock, % values and date format in trends
fix: trend lines in line graph after refresh
fix: trend display on bar graph
fix: human readable values in bar graph labels and color of metric
fix: display % in trends values