Allow schema and schema page anchor to be defined for each property

Conflicts:

	components/autogen/src/doc/meta-summary.vm
	components/autogen/src/meta-support.txt
Fix many more broken anchors (especially in the ROI and SPW schemas)

Conflicts:

	docs/sphinx/formats/gatan-digital-micrograph-metadata.txt
	docs/sphinx/formats/zeiss-lsm-metadata.txt
	docs/sphinx/metadata-summary.txt
Fix the annotation schemas

Conflicts:

	docs/sphinx/metadata-summary.txt
Fix anchors for reference attributes

Conflicts:

	docs/sphinx/metadata-summary.txt
Fix various LightSource anchors

Conflicts:

	docs/sphinx/metadata-summary.txt
Fix invalid link in the DICOM page
Hopefully the last of the anchor fixes

Conflicts:

	docs/sphinx/metadata-summary.txt
Really fix the last annotation anchor
Regenerate metadata pages
Merge pull request #495 from melissalinkert/anchors-develop

More anchor fixes for metadata pages (rebased onto develop)