Bump to version 1.3.6

bumps to v1.3.5 and f4e 2.1

Bump to version 1.3.4

Version 1.3.3

Bump to version 1.3.2

Bump to version 1.3.0

Bump to version 1.2.6

Fix center tag to expand with new text-center class

When <center> tag is processed, add the class 'center' instead of ove…

…rwriting the whole class attribute

Bump to version 1.2.1