feat(graph panel): changed to PR #4493 and other polish, removed the relative time from graph tooltip, did not think it worked that well

highlight series name in tooltip when shared tooltip enabled

fix(): fixed issue with series override color selector when using the mouse to select color option, fixes #4620

fix(series overrides): graph no rerenders with new styles after updating series override, fixes #4621

Updated font and a new style

fix(graph panel): fixed issue where newly added graph panels shared axes config binding, fixes #4582

clarify that this is only an example. fix 2 of #4576

Fixed typos, lang

Removed unused option

document godep build dependency

Fix percentage checkbox naming. Fix #4584

fix(postgres): fixed issue with postgres caused by wrong prefrences table types, dropped table and created it with correct column types, fixes #4558

closes #4562