slaprunner: Add a backup signature using sha256sum
Resilience: Increase timeout for ssh server and client to 5 minutes.
wip for json schema
slapos.core egg version up: use slapos.core 1.2.3.
no longer need to use custom eggs for permission issue.
version up eggs.
version up : curl 7.38.0.
version up : squid 3.4.7.
version up eggs.
version up : libffi 3.1.

also fix includedir and Libs in libffi.pc.
fixup! version up : libffi 3.1.
apache-frontend: update TODO

apache-frontend: Update TODO
trafficserver-component: Version up
apache-frontend: fix trafficserver disk cache configuration
apache-frontend: fix replicate to provide name to nodes
apache-frontend: Provide default-path option for slaves
[slapos-testing] Add LOCAL_IPV4 as environment to be used by tests.
version up eggs: slapos.core 1.2.3.1.
version up eggs.
slaprunner: Now support CORS (works with dav)