Added property for declaring a dataset logo

Added schema.org to the set of used vocabularies
Added schemaorg:logo property to the table
Added example usage in with the web page details
Updated creation property recommendations

We agreed in the last call that these should be set to NEVER for the Summary level description to be consistent with the dct:created property recommendation
Removed guidance column. Resolves #3
Merge pull request #5 from AlasdairGray/patch-3

Updated creation property recommendations
Merge pull request #2 from agbeltran/master

Initial text for experimental datasets use case
Merge pull request #4 from AlasdairGray/patch-2

Added property for declaring a dataset logo
Added section 8.10 to the TOC.
Removed latenceOfChange from the table.
Changed styled quotes to plain quote marks.
Schema.org name

Missing column
Merge pull request #7 from AlasdairGray/patch-4

Schema.org name
Fixed section references. Added link-out to VOID section cited. Combined PAV and PAVPaper references.
Update Overview.html

Fixed Nicolas' name and affiliation.
Update Overview.html

Fixed 'idot' namespace (terms now resolvable).
Update Overview.html

Changed 'PrimarySource' (class) into 'primarySource' (property).
Update Overview.html

Not relying on UTF8 to properly render accents.
Fixed encoding issues.
Updated Figure 1 and its caption. Shows all essential relationships and includes a legend.
Removed Figure 2.
Bugfix. schemaorg:logo row in Table 1 had an extra column.