Add abstract class for functions.

Functions classes with instance of AbstractFunction may keep values within single string.
addcomma function allows to not insert comma with single value to insert.

Changed template marker functions description mechanics.

The best approach for extend custom functions.

Add function pluralrus for name numbers for Russian.

v1.3.0

Add function pluralrus for name numbers for Russian.

Set replace function to protected.

v1.2.1

Set replace function to protected.

Marker in template can be with many functions. Functions can have params.

v1.2.0

Marker in template can be with many functions. Functions can have par…

Add PowerReplace class for use.

v1.1.0

Add PowerReplace class for use. Tested.

SimpleReplace class.

It uses str_replace function. Can work with php 5.6