txt2tags.class.php doesn't work with php7

[farvardin]

php7 broke so many things in its own syntax that the txt2tags.class.php no longer works. We should update the code to make it run on php7.

[farvardin]

It could be related to the class construction (both class and function share the same name):

http://cweiske.de/tagebuch/php4-constructors-php7.htm

But it should only display a warning, while now the output is blank.

I'm still looking for a fix.

[farvardin]

should be fixed with commit f08f047
Thank you Petko!