Add description of ?linkonly below the embedded media list at syntax page

phpdocs, reformatting

emphasis syntax has similar syntax, prevent conflicts

spaces were not stored due to automatically tools

PHPDocs for remote and action

updated archive library via composer

geshi update via composer

translation update

reset page back to normal on closing dialog

removed no longer needed ajax action components

added a simple loading screen for the JavaScript preview

changed the whole thing to a real popup

fixes various probelms mentioned in #1163

however I think I will convert the dialog to a real popup instead.

translation update

translation update

Replace old constructor call by __construct() in dokuwiki_xmlrpc_server

translation update

change two spaces to a space

In line 5 and 6, Message have two spaces, so I change them to a space.

translation update

translation update

translation update

translation update

Rephrase description of io_replaceInFiles to be clarify use of regex

Abort io_replaceInLine when the search parameter is empty

Minor Refactoring
- put test comments in more appropriate spot
- move appending replacement line alongside its search/delete code