another gitignore path

fixed authplain

* code/PHP5 cleanup

authpgsql fixes

* fixes merge messup (code was made up from parts of authad)
* code and PHP5 cleanup

authmysql fixes

* use proper plugin config
* code/PHP5 cleanup

fixes for authldap

* makes proper use of plugin config
* adds a few first defaults, but the whole config metadata is still
missing
* proper PHP5 use and comments

authad fixes

* fixes incorrect $this->adldap calls
* makes use of correct plugin config

adjusted gitignore for auth plugins

merge old auth style configs with plugin config

moved adLDAP to authad plugin and fixed includes

some comment cleanup in authad

make all sub auth classes call the parent constructor

This does nothing currently but allows us adding certain things
to the base class later.

don't merge any global confs into auth plugin configs

changed proxy in test case

added PCRE UTF-8 checks to do=check FS#2636

avoid multiple paralell update checks

we now touch the messages before the actual update happens. this should
lower the chance of more than one update check running at a time.

fix regression bug in HTTPClient FS#2621

In the recent refactoring of the HTTPClient, a problem with certain
systems was reintroduced. On these systems a select() call always
waits for a timeout on

fix regression bug in HTTPClient FS#2621

In the recent refactoring of the HTTPClient, a problem with certain
systems was reintroduced. On these systems a select() call always
waits for a timeout on the first call before working properly on the
second call.

This patch reintroduces the shorter timeouts with usleep rate limiting
again.

Since this bug is not reproducible on other systems it can't be unit
tested unfortunately.

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added simple compatibility wrapper for old TarLib

changed PAGEUTILS_ID_HIDEPAGE to has BEFORE/AFTER

unit test for tar bombs

Tar: support for creating archives with long filenames

The library now creates either a POSIX ustar prefix or a GNU longlink
entry for files which have a name longer than 100 bytes

Tar: Added extraction support for long file names

Supports POSIX ustar prefixes and GNU longlink entries

removed old TarLib and changed plugin manager to use new one

added test cases for Tar::extract parameters

Completely rewritten Tar library

This new class is only losely based on our previous library. The
whole API was changed to make it more flexible and memory saving.

Some fisrt unit tests are included

TarLib code cleanup