change methods name

use PageDiff::compareWith() for draft, conflict

Ui\Diff hierarchy

move Ui\Diff to Ui\PageDiff

create Ui\PageRevisions class

new Ui\PageRevisons is dedicated for page revisions

Merge branch 'master' into Refactor_Fulltext

change MetadataSearch and FulltextSearch to non-singleton

singleton is not effective to reduce multiple instantiations, especially for MetadataSearch which is frequently used in ajax call.

change Index objects to non-singleton

Indexer, FulltextIndex, MetadataIndex uses common directory to store *.idx files, but this does not mean they should be singleton objects to avoid lock confrict

change Index objects to non-singleton

Indexer, FulltextIndex, MetadataIndex uses common directory to store *.idx files, but this does not mean they should be singleton objects to avoid lock confrictions.

show more ...

update phpdoc

deprecate html_form()

encourage plugin devs to use new Form class

remove html_softbreak_callback()

re-declare deprecated function html_edit_form()

call dbg_deprecated(), even this function lost compatibility because its argument $param['form'] has changed to hold Form\Form object

re-declare deprecated function html_li_default()

fix missing return

re-declare deprecated functions for backward compatibility

`dbg_deprecated()` is called in `html_diff_head()`, `html_diff_navigation()`, `html_diff_navigationlink()`, and following functions:

* `h

re-declare deprecated functions for backward compatibility

`dbg_deprecated()` is called in `html_diff_head()`, `html_diff_navigation()`, `html_diff_navigationlink()`, and following functions:

* `html_denied()` is not used any plugins, but added fallback just in case.
* `html_locked()` is used by one third-party plugin (AjaxEdit), fallback should be added.
* `html_insert_softbreaks()` is used by one third-party plugin (TOS, terms of service), fallback should be added.

show more ...

add dbg_deprecated() calls

tigger HTMLFORM_*_OUTPUT events

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

mark html_denied() and html_locked() as deprecated

and fix coding style

create Ui\Index::buildIndexList()

closure to obsolete html_li_default()

closure to obsolete html_hilight_callback()

mark html_* funcs as deprecated that call relevant Ui class

html_sizechange() returns HTML when $form is not set

print forms without html_form_output()

Update html.php