http://stackoverflow.com/a/33005329/172068 tells us that we never need
to send it when it's zero. Which it always is for GET. That means we can
always send it for non-zero values.

Allow form dropdown options as arrays with numeric keys

Fix problems in authpdo

Without the change in issue #1801, or commit
1b26d16d respectively, this adjusted
test would throw an error since it would attempt to use another array as
an array-key.

The fact that the test passes without error means that the bug is fixed.

The problem this is solving is that PHP does not allow for array-keys to
be strings of ints. It always converts them to actual ints. This caused
a problem when trying to use complex array-options with integers as
keys.

Translation update (fa)

Translation update (it)

Add support for optgroup-tags for select-fields

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.

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

Test against the current hhvm version

Multiple selected option would not be valid HTML.

Translation update (sr)

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

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.

fixes #1776

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/

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.

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.

Translation update (zh)

Use composer installed phpseclib