Merge pull request elapouya#100 from anselal/patch-1

Fix minor typo

Remove debug traces

Merge pull request elapouya#93 from Arthaslixin/master

Add vertical cell merge support in a loop

Merge pull request elapouya#91 from rgusmero/master

Nice ! many thanks !

Merge pull request elapouya#88 from hugokernel/defer-image-attachment

Defer image attachment

- Add replace_embedded() method (useful for embedding docx)

- Add replace_media() method (useful for header/footer images)

Fix exception in fix_table()

Fix bug when using more than one {{r }} or {%r %} in the same run

Better head/footer jinja2 handling&

Fix bug where one is using '%' (modulo operator) inside a tag