Providing custom mytemplates/ and mymedia/ locations.
Working on adding search flags.
Working on search customization.
Allowing project admins to customize search flags for replicas, versions, sites.
Cleaning up flags.
Merge branch 'master' into devel

Conflicts:
	cog/templates/cog/search/_search_text.html
Merge branch 'master' into devel
Merge branch 'master' into devel
Removing current site from list of peer sites.
Changing syntax of fixed search constraints and supporting multiple coma-separated values.
Merge branch 'master' into devel
Inserting custom header and footer files.
Fixing the problem with striptags.
Merge branch 'master' into devel
Removing obsolete TestSearchService
Removing unnecessary code on natural keys for project serialization.
working on headers and footers
working on headers/footers
working on custom header
creating default custom heade: