Merge pull request #341 from tarjei/patch-3

Update Resources/doc/9a-markup_htmlpurifier.md
Merge pull request #342 from tarjei/patch-4

Update Resources/doc/9-using_a_markup_parser.md
Updated composer.json

JMSSerializerBundle seesms to have changed its versioning scheme:
https://github.com/schmittjoh/JMSSerializerBundle/commit/b9e9a6511062b785a96f77a66b506b75fb863ddc
Merge pull request #344 from mweimerskirch/patch-2

Updated composer.json
Added 'fos_comment_show_edit_form' javascript event
Merge pull request #346 from XWB/new-js-event

Added 'fos_comment_show_edit_form' javascript event