revert return of getNS to false again

PHPdocs pageutils

getNS returns empty string instead of false

Merge remote-tracking branch 'remotes/origin/master' into revisions_local

amend $_SERVER to $INPUT->server

fix check link existence, have to call getLastRevisionAt for every link

check link existence

Improve PHPDocs pageutils

removed deprecated third param of cleanID()

replace boolean conditional checks on possibly uninitialized vars with \!empty/empty/isset as appropriate

Bugfix: DOKU_CONF path in pageutils.php

Remove extraneous slash. This extra slash was preventing the file being displayed by DokuWiki. (apologies for the two pulls instead of one)

Redirect only in the show action to namespace start pages FS#2743

When the current page id ends with ":" (or "/" with useslash enabled)
DokuWiki tries to find the start page of namespaces automatica

Redirect only in the show action to namespace start pages FS#2743

When the current page id ends with ":" (or "/" with useslash enabled)
DokuWiki tries to find the start page of namespaces automatically and
then redirects to this page. The target of the redirect is always the
show action regardless if the current request contains another action or
is an ajax request. In practice you can get this problem when your
search query ends with ":" (e.g. because you want to match a namespace),
then you are redirected to the show action.

This change completely disables the redirect when $ACT is undefined or
the current action is not "show".

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Combine subsequent calls to strtr into a single transformation

fixed wrong sidebar showing in namespaces when sidebar is disabled

changed PAGEUTILS_ID_HIDEPAGE to has BEFORE/AFTER

added event PAGEUTILS_ID_HIDEPAGE

Allow the $check parameter of sectionID to be false

replaced use of basename() with utf8_basename() FS#2015

Merge branch 'input-validation' of git://github.com/whoopdedo/dokuwiki into pull-request-110

* 'input-validation' of git://github.com/whoopdedo/dokuwiki:
fix incorrect usage of tpl_getMediaFile

Merge branch 'input-validation' of git://github.com/whoopdedo/dokuwiki into pull-request-110

* 'input-validation' of git://github.com/whoopdedo/dokuwiki:
fix incorrect usage of tpl_getMediaFile
fix necessary global declaration
Input wrapper for html forms
Input validation for media manager
Input wrapper for exe scripts
more INPUT wrapper uses: cache purge, sectok, getID
Input wrapper for action.php

Conflicts:
lib/exe/css.php

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Improved sidebar inclusion

Template authors now can use tpl_sidebar() to include the sidebar.
Sidebars can be defined in subnamespaces as well

more INPUT wrapper uses: cache purge, sectok, getID

Merge branch 'master' into htmlmail

* master: (382 commits)
Romanian language update
Marathi language update
Arabic Language Update
when there's not enough space for images, make sure they s

Merge branch 'master' into htmlmail

* master: (382 commits)
Romanian language update
Marathi language update
Arabic Language Update
when there's not enough space for images, make sure they stay proportional (might be FS#2480)
added minimal RTL print styles (part of FS#2185)
moved plugins' rtl.css to their style.css counterpart (part of FS#2185)
removed all browser-specific gradients as the recently (in 42ff6730) introduced svg makes them unnecessary
removed comments from accidentally commented lines in tpl_includeFile()
removed obsolete template file
added tpl_includeFile() to core
Make getTitle method in remote interface public
Changed an error code in XML-RPC interface. This error hasn't anything to do with the rest of the -32600 errors.
BG: language update
Korean language update
fixed performance issues with gradient in Firefox (which also added gradient support for IE9) (FS#2447)
deleted very old (and unused) images
added accidentally removed '<?php' back in (was in 57fc5edd)
wrapped X-UA-Compatible meta tag with conditional comments
added explanation to todo in _forms.css
removed problematic 'overflow: hidden' from lists again ('unfixes' FS#1950)
...

Conflicts:
inc/auth.php
inc/load.php

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coding style updates

deprecated 3rd parameter of cleanID() FS#2377

For some reason trailing/leading underscores were allowed when uploading
files. But the rest of the code (eg. listing or downloading files) never
suppor

deprecated 3rd parameter of cleanID() FS#2377

For some reason trailing/leading underscores were allowed when uploading
files. But the rest of the code (eg. listing or downloading files) never
supported this. This patch removes this special case for uploading files
to streamline ID cleaning of pages and media files.

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allow non-txt extensions when accessing locales