added new time_format config, updated timerange.py
added time_format to mapbase
fixes for lightcurve sources
update to vso show time format
update to database display
Updates to docs
Merge remote-tracking branch 'upstream/master' into timeformat_config
update default time format to ISO8601
Merge pull request #1116 from ehsteve/timeformat_config

[Review]: Normalizing Time format
Merge branch 'master' of https://github.com/sunpy/sunpy into coordinates-framework
Added L0 and B0 as FrameAttributes in all frames.