do not static cache useheading during tests

This took me way to long to figure out. The useheading setting was
cached in a static variable which is fine usually as it doesn't change
during a single

do not static cache useheading during tests

This took me way to long to figure out. The useheading setting was
cached in a static variable which is fine usually as it doesn't change
during a single request. But in testing we want to change it often.

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fix problems with header that look falsy. fixes #1770

fix tests for newer PHPUnit. fixes #1643

getMock is deprecated in new PHPUnit versions and createMock is the
recommended replacement. However that one is not available in older
PHPUnit releases. Sin

fix tests for newer PHPUnit. fixes #1643

getMock is deprecated in new PHPUnit versions and createMock is the
recommended replacement. However that one is not available in older
PHPUnit releases. Since we still support older PHP releases we have to
support older PHPUnit releases as well.

This add some compatibility functions to our TestCase class and replaces
all calls to getMock. Tested with PHPUnit 4.6.6 and 5.5.0.

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filesize_h might not be used in HTML content only #1622

Using an HTML entitiy might be problematic in non HTML renderers or when
the output is escaped again.

allow passing multiple classes as array

fixed interwiki test

minor optimization how cell counts are fixed in tables

array splice operations are expensive. when many cells in a table row
are missing, the operation should be executed only once instead for each

minor optimization how cell counts are fixed in tables

array splice operations are expensive. when many cells in a table row
are missing, the operation should be executed only once instead for each
missing cell.

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always separate a number and a unit by a non-breaking space

optional class for methods that open a table,row,cell,header, ul,ol

Let plugins add their own classes to builtin tables or lists.

Fixes #1188
Alternative for #1360 (and PR #1515)

Fix Parser Media tests running locally

These tests were passing on travis-ci but failing when run locally because the tests were assuming the value of DOKU_BASE would be '/./' but it was actually '/

Fix Parser Media tests running locally

These tests were passing on travis-ci but failing when run locally because the tests were assuming the value of DOKU_BASE would be '/./' but it was actually '/tmp/' instead.

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Remove non-functioning interwiki links

Encode unsafe characters in interwiki links. closes #1220

Unit test for interwiki URL encoding bug

Changes for PHP 7 Compatibility
- replace PHP4 style class constructor function names (based on
class name) with php 5 __construct()
Also remove some '&' reference operators used with objects
And a

Changes for PHP 7 Compatibility
- replace PHP4 style class constructor function names (based on
class name) with php 5 __construct()
Also remove some '&' reference operators used with objects
And add some object type hints

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Remove stray comment block

Fix file size

Add test for internal video files

update parser tests for change in listitem_open instruction

Add tests: known and unknown external video files