slaprunner: uses new version of slapos.toolbox (0.38.1)
apache-frontend: frontend is now replicated by default
apache-frontend: provide max connection per ip parameter
apache-frontend: update README for ip-read-limit
apache-frontend: remove squid recipe

Remove squid recipe to offer better reactivity if modification are needed
apache component: update version 2.2.25 -> 2.2.26
slaprunner: user is guided on first run
thanks to modified published parameters
vim-component: add vim component
slaprunner: vim component added
slaprunner: added nano component
screen-component: add screen component
slaprunner: add screen component
slaprunner: console now provides git, nano, vim and screen

Conflicts:
	software/slaprunner/common.cfg
remove needless part for python-2.7.
update CMF.
update eggs.
forgot to update slapos.recipe.build.
version up : curl 7.34.0.
Merge remote-tracking branch 'origin/master' into erp5-component
pin older version of huBarcode for now.

because huBarcode 1.0.0 has an issue in importing PIL.