Add most of the Kallithea (SCM) dependencies

[ng0]

 [PATCH 01/18] gnu: Add python-geventhttpclient.
 [PATCH 02/18] gnu: Add python-fastimport.
 [PATCH 03/18] gnu: Add python-dulwich.
 [PATCH 04/18] gnu: Add address@hidden

 This version, like every maybe older version I packaged here, are hardcoded by 
kallithea and required.
 As I was confused about the syntax message at some point, it could be that 
mercurial is the only one
 with @3.7.3 in its name and the only incorrect one. I'd like the committer to 
fix it if it's just a
 trivial mistake like this.
 Due to my attention being required else where I can not respond to possible 
lots of corrections to apply
 in a short reaction time. If it looks like this is being ignored by myself - 
it isn't, I'm just busy.

 [PATCH 05/18] gnu: Add python2-mysql-python.
 [PATCH 06/18] gnu: Add python-dulwich-0.9.9.
 [PATCH 07/18] gnu: Add python-repoze.lru.
 [PATCH 08/18] gnu: Add python-routes.
 [PATCH 09/18] gnu: Add python-routes-1.13.
 [PATCH 10/18] gnu: Add python-urlobject.
 [PATCH 11/18] gnu: Add python-urlobject-2.3.4.
 [PATCH 12/18] gnu: Add python-docutils-0.11.
 [PATCH 13/18] gnu: Add python-markdown-2.2.1.
 [PATCH 14/18] gnu: Add python2-babel-1.3.
 [PATCH 15/18] gnu: Add python-pyparsing-1.5.0.
 [PATCH 16/18] gnu: Add python-amqplib.
 [PATCH 17/18] gnu: Add python2-kombu-1.