Updated author list.
Updated introduction to fix grammar and typos
Very minor abstract patch
Updated datatypes sections
Updated VSO
Updated HEK
Updated HELIO
Minor updates to Helioviewer
Updated database
Updated utilities
Minor patch to dev
Added comments to future, minor fixes
Added comments to this section
Made astropy references consistent
repaired i.e. and e.g.
Added parens to function call
Merge pull request #68 from rhewett/master

Major set of minor revisions