Update pinned egg versions.
Always unzip eggs in slapos installation.
Upgrade python to 2.7.5.
Merge branch 'erp5-component' into erp5
Merge branch 'erp5-component' into erp5
Merge branch 'erp5-component' into erp5
Merge branch 'erp5-component' into erp5
Merge branch 'master' into slapos
update egg versions.
Merge branch 'slapos' into erp5-component