Fixed annotation link javascript in docs#spans
Fixed docs@spans
Added rspec option
Added namespaces to projects and parsed namespaces to projects.json
Added spans selection js (include a bug needs filxing)
Fixed span select url (selected range needs fixing)
Fixed span select javascript
one test revised.
Merge branch 'working' into development

Conflicts:
	app/views/docs/_content.html.erb
Merge branch 'working' of https://github.com/pubannotation/pubannotation into working

Conflicts:
	app/views/docs/_content.html.erb
	db/schema.rb
cleaning
Merge branch 'working' into development

Conflicts:
	app/views/docs/_content.html.erb
the problem with posting documents fixed.
Merge branch 'development'
contact address changed to admin@pubannotation.org
TextAE message and URL changed.
textae.pubannotation.org is added for CORS.
namespaces presentation improved.
mode=addition added for additional posting of annotations.
Merge branch 'development'