Add changes to Manifest, FileOrganiser, CSC
Merge branch '141-FileOrganiserManifest' into daily
Merge branch '147-sass-debug-info' of git://github.com/8w/PHP.Gt into 8w-147-sass-debug-info
Merge branch '8w-147-sass-debug-info' into daily
Implement <template> element, closes #83.
Merge branch '83-Template-Element' into daily

Conflicts:
	ChangeLog.md
Closes #127. PageCode class names drop hypens.
Merge branch '127-UrlHandling' into daily
Merge branch '83-Template-Element' into next

Conflicts:
	ChangeLog.md
Merge branch 'next' into daily
Merge branch '141-FileOrganiserManifest' into daily
Fix loose typing check
Add data-manifest-ignore check
Simplification of Manifest-related classes
Fix fingerprinting for cache validity of Manifest
Improve cache checking
Implement tests, completing manifest spec.

Asset copying and client-side compilation still WIP.

For #141.
Implement asset copy
Implement asset cache & checks
MAke check for missing asset directory.