mod_development: added request dispatching debug.
This shows the steps of the dispatcher in matching a dispatch rule, including all bindings, rewrites etc.
mod_development: add access control to the dispatch rule debugger.
mod_development: fix build of edoc.
docs: add more mod_development documentation.
mod_development: show final dispatch after #dispatch_rewrite.
mod_development: add human-readable form for rewrite_nomatch. Always show the final dispatch.
docs: added preliminary 0.10.1 release notes.

(cherry picked from commit af79edf6164aff65130769def8033952e7492523)
show_media tag TLC
typo
add link to manual dispatch
tweak highlight and see also colors
mod_development: added template lookup tool to check the template selection.
Optionally add a resource castegory.
Shows the selected template per user-agent class.
admin: open editor image dialog with depiction tab
admin: improve display of image options in editor

make image retina ready; group choices in dialog
document restart command
core: fix stored procedure 'medium_update' for psql 8.x
mod_development: fix problem where the dispatch-debugging interfered with ssl connection redirects.
core: make the checksum assert more robust against illegal input.
mod_filestore: fix problem with urls ending in a '/'
admin: automatically resize editor based on contents