Graphite: fixed aliasSub graphite func definition
InfluxDB: fixed issue with using custom/absolute from time to now(), Fixes #1113
Graphite: added timeStack function definition, Closes #1118
Singlestat: changed singlestat title to centered position, Closes #1117
Graphite: Lexer fix, allow equal sign (=) in metric paths, Fixes #1114
Light theme: tweaks to background color and table highlight rows, Closes #1119
Merge remote-tracking branch 'upstream/master'