= docs: improve signature including by matching all lines to the final '=' of the signature
= docs: add MiscDirectives documentation
= docs: add overview to distinguish directives by request or response
= docs: add RoutingDirectives docs, refs #442
= docs: add RespondWithDirectives docs, refs #442
Merge pull request #724 from spray/ticket/442

= docs: add RoutingDirectives docs
Merge pull request #725 from spray/wip/442

= docs: add RespondWithDirectives docs, refs #442
Merge pull request #726 from jrudolph/w/add-directive-documentation

More directive documentation
= site: add OpenSearch "search" and suggestions plugin for easy documentation access, refs #136
= site: add search box to page that shares suggestions with OpenSearch

Also got rid of directive search as this is completely contained in the
documentation search.
Merge pull request #727 from jrudolph/w/add-directive-search

= site: add OpenSearch "search" and suggestions plugin for easy documentation access
= docs: smaller additions to FileAndResourceDirectives docs
= site: update all docs to current versions
= site: improve other-resources chapter, fix broken links
= site: smaller tweaks
= site: shorten podcast links
= site: remove link to non-existent search descriptor