[fix bug 921243] Reset the image size after image clean.
Add python markdown library.
[fix bug 905351] Allow markdown markup in Bio field.

Support for bold, italics, lists, links and paragraphs.
[Bug 922619] Sorted the list of external accounts
Merge pull request #651 from glogiotatidis/921243

[fix bug 921243] Reset the image size after image clean.
Merge pull request #652 from bharaththiruveedula/bug922619

[Bug 922619] Sorted the list of external accounts
Merge pull request #643 from glogiotatidis/905351

905351