fix: check if key is set to fix PHP Notice

If a key is not set, a PHP Notice is triggered. While these are
currently suppressed, this is still a code smell.

fix: access first element of associative arrays

This function might be called by an plugin with an array that has only
string keys and hence no key 0. This would trigger an PHP Notice when
trying to

fix: access first element of associative arrays

This function might be called by an plugin with an array that has only
string keys and hence no key 0. This would trigger an PHP Notice when
trying to get the first key's level.

show more ...

fix: set default value for empty var

If an config value is not set in the input lines, initialize it as empty
string to prevent PHP Notices complaining about $line[1] being not set.

fix: initialize vars to prevent PHP Notice

A PHP Notice occurred when $url didn't contain a '?'.

adjust default bcrypt iterations to 10. fixes #2093

Test code for workflow 'show - sectionedit - save/cancel' (with modifications in test classes and 'send_redirect()' and 'act_dispatch()'.

always send Vary: Cookie header. fixes #1594

moved function and fixed whitespace errors

show more info on failed HTTP requests

hopefully this will help with figuring out why our HTTP tests sometimes
fail on travis.

do not export the appveyor config

Added appveyor config for automated windows testing

Update check supports HTTPS

If SSL is not supported, a HTTP request will be made. In the log the request type will be indicated, but on the frontend no additional message would be shown (I think it'

Update check supports HTTPS

If SSL is not supported, a HTTP request will be made. In the log the request type will be indicated, but on the frontend no additional message would be shown (I think it's better to notify admins about non-SSL situations, but currently when this fetch encounter error, no error message will be shown, so it's better not to add any warning).

show more ...

fixed some style errors found by scrutinizer

removed unused, empty files

some cleanup fpr set_metadata test

added one more test for internal links

just to be sure, we're not breaking something simple here.

parsertests: replaced var keywords and added type hints

Fix p_set_metadata damaging contributors with numeric ID

Add tests for array_replace part of set_metadata

Fix rendering null $language going to GeSHi (fixes #2088)

Fix RSS syntax XSS bug (#2081)

Fix sanitation of $language for code highlighting (fixes #2080)

translation update

Support Web Video Text Tracks Format subtitles

slightly adjusted the icon sizes

This looks a bit better and is closer to the original, even though the
sizes are a bit weird now.