cleanup [versions].
software/slaprunner: fix regression that breaks instantiation.
version up eggs.
slapos.core and zc.buildout version up

  Use slapos.core 1.2.2 with fixes for slapos node collector
  Use new zc.buildout with fixes on eggs filesystem permission
slaprunner: Don't compress for local transferences

Use compress for local transference is just slow.
version up: use newer zc.builout
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.