refactor: handle default options w/ other optgroups

refactor: rename parameters to be less ambiguous

refactor: use existing and simpler method

refactor: Rename method to better convey its purpose

fix: remove multi-select handling -> make PR later

We currently throw an exception with setting the multiple-attribute is
attempted. If we want to implement this functionality, it might be more
sens

fix: remove multi-select handling -> make PR later

We currently throw an exception with setting the multiple-attribute is
attempted. If we want to implement this functionality, it might be more
sensible to make an extra commit for that.

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fix: Make this Form method chainable as it should be

phpenv does not work on HHVM

allow selecting the preferred CDN and add event

We now have two CDNs available. code.jquery.com which is the more
popular one and CDNjs which is the faster one. Plugin authors can use a
plugin hook

allow selecting the preferred CDN and add event

We now have two CDNs available. code.jquery.com which is the more
popular one and CDNjs which is the faster one. Plugin authors can use a
plugin hook to easily implement their own preferred CDN. Authors might
even use this event to conditionally load additional JavaScript files.

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authpdo: fix group filter

The filter passed by the user manager is called 'grps' not 'group'

authpdo: fix return type of retrieveUsers() #1781

authpdo: fix wrong return type for getUserCount() #1781

fix: ensure that there is only 1 selected option

Multiple selected option would not be valid HTML.

translation update

Speed up hhvm unit tests - disable jit

Turn off the hhvm JIT to speed up the hhvm unit tests.

Source for why the JIT is bad for unit testing: facebook/hhvm#6979

Add test for optgroup support in selects

Add support for optgroup-tags for select-fields

In more complex selects we may want to group options by some criteria.
HTML has the <optgroup>-tag for that purpose.

However in Order to not duplicat

Add support for optgroup-tags for select-fields

In more complex selects we may want to group options by some criteria.
HTML has the <optgroup>-tag for that purpose.

However in Order to not duplicate code, I've to move the handling of
options to the OptGroup-Class completely.

Known Issues:
-------------
* We may have more than one option with the same value and therefore
more than one option may be marked as selected.

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properly initialize LESS importDir. fixes #1777

Remove type-attr from <select> b/c it's invalid

fixes #1776

Test against the current hhvm version

This provides the current HHVM version (3.15.3 as of this PR) and will track with each release (i.e. will be 3.16 when 3.16 is released.

If testing against H

Test against the current hhvm version

This provides the current HHVM version (3.15.3 as of this PR) and will track with each release (i.e. will be 3.16 when 3.16 is released.

If testing against HHVM LST versions is desired follow this guide. https://docs.travis-ci.com/user/languages/php#HHVM-versions

Should be able to change to container based Trusty after Q1-17 https://blog.travis-ci.com/2016-11-08-trusty-container-public-beta/

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use waitForTick in all our tests

refactored the remote API tests

Now each command is checked within it's own test on a completely clean
install. Hopefuly this also takes care of the flaky test behavior seen
at Travis occasionally.

new helper method waitForTick() in DokuWikiTest

Some of our tests require that at least one second has passed before
they can continue because our revisions depend on the Unix Timestamp.

Currently

new helper method waitForTick() in DokuWikiTest

Some of our tests require that at least one second has passed before
they can continue because our revisions depend on the Unix Timestamp.

Currently we use a sleep(1) for this. However this always waits a whole
second, even if the next second is already much closer or maybe already
here - especially when some processing has been done since the last
operation.

This new method waits for the next second by checking the time every
10th of a second. This might speed up some of our tests a bit.

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translation update

we should now be PHP 7.1 compatible

try to fix phpunit version for hhvm