drop database tables timestamp fields
Forgotten a fontawesome variable
Merge pull request #29 from josqu4red/remove_ts

drop database tables timestamp fields
Merge pull request #28 from renchap/better_graphs

Better looking graphs and legend
fix flush of rrd files in collectd provider
Merge pull request #30 from josqu4red/fix_flush

fix flush of rrd files in collectd provider
add timescale support for graphs, add minimal layout
Merge pull request #31 from josqu4red/graphs

add timescale support for graphs, add minimal layout
Merge remote-tracking branch 'upstream/master' into better_graphs