codestyle adjustments: class declaration braces

Fix old revisions skipping one revision

This changes the UI to start counting at -1, which will instruct the
Revision Management to prepend the current revision to the list of old
revisions returned

Fix old revisions skipping one revision

This changes the UI to start counting at -1, which will instruct the
Revision Management to prepend the current revision to the list of old
revisions returned. This way no special handling for the current
revision has to be done in the UI class anymore and paging works
naturally.

Fixes #3897

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some spelling

new RevisionInfo class obsoletes anonymous objRevInfo class

obsolete getObjRevInfo() in Ui\Recent and Ui\Revisions classes, that had defined anonymous class. they are similar but slightly differentl

new RevisionInfo class obsoletes anonymous objRevInfo class

obsolete getObjRevInfo() in Ui\Recent and Ui\Revisions classes, that had defined anonymous class. they are similar but slightly differently treat the diff link icon. It is impossible to create common method for diff icon using only revision information, it depends on caller, ie. recent or revisions list

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use false for unknown timestamp instead of 'unknown'

set revInfo{'current'] when needed

do not set 'current' key in ChangeLog:getCurrentRevisionInfo(), instead set it during loop in Revision and Diff classes

update Ui\Revisions using ChangeLog\getCurrentRevisionInfo()

remove class property $item
remove abstract function itemFN()
simplify function getRevisions($first, $hasNext)

WIP: handle External Deletion using time() for dummy rev number

list external edits also in revs list

- current revision changelogline is already in changelog, so retrieve in one go
- include listing of external edits
- for external deletions no date is known

Merge branch 'master' into revisionHandle3

Fix undefined array keys when displaying revisions

Fix Undefined array key "current" warnings

Multiple occurrences when showing a page's revisions.

Fixes #3392

abstract method itemFN()

check media id validity

define Ui\Revisions::getRevisions()

- new item property defined
- modified getObjRevInfo(), buildDiffHead()

refactor buildDiffHead()

UI\Revisions hierachy

define Revisions as abstract, which is inherited by PageRevision and MediaRevision classes. this is simillar to ChangeLog class hierachy.

set proper revinfo when media meta file is not available

MediaChangelog::getRevision() may return false when media changes meta file is missing, cause error unsupported operand types.

change event naming scheme

FORM_*_OUTPUT scheme had been introduced since Apriil 2018, see #2286

fix missing or unnecessary use Event statements

tigger HTMLFORM_*_OUTPUT events

trigger events in Form::toHTML() instead of using Event::createAndTrigger()

remove unnecessary printing DOKU_LF

split longer show() into task methods.

The structure of Ui\Revisions is similar to Ui\Recent. Ui\Revisions::getRevisions() returns a arrey of rev info array as same as getRecent().

add space delimiters inside the list item

Bugfix missing div.no tag just after the form tag in Ui\Revisions::show()

html_sizechange() returns HTML when $form is not set