[eit] update man page for eit-push(1)
[eit] add "eit query required" command
Release Entropy 211
Tagging Entropy version 211
Merge remote-tracking branch 'upstream/master'
[entropy.server] do not force disable xcache

This hopefully makes possible to use EntropyCacher in entropy.server
as well.
[entropy.cache] EntropyCacher: promote methods to @classmethod
[entropy.const] const_get_caller(): make it work inside test modules
[entropy.server] add _cache_prefix()

_cache_prefix() will be used for computing a fixed and function
dependent cache key prefix that contains the module name, class name
and method name (retrieved via const_get_caller()).
[entropy.server] injected_library_dependencies_test: add disk caching

The test phase is called frequently in both commit and push phases.
However, between commit and push there are no changes to the repository
database content and caching out this test greatly improves speed.
[entropy.server] removed_reverse_dependencies_cache: add disk caching

The test phase is called frequently in both commit and push phases.
However, between commit and push there are no changes to the repository
database content and caching out this test greatly improves speed.
[entropy.server] drop verbose output messages in deptest functions
[entropy.server] drained_dependencies_test: split method into two

This allows for easier caching implementation
[entropy.server] drained_dependencies_test: add disk caching

The test phase is called frequently in both commit and push phases.
However, between commit and push there are no changes to the repository
database content and caching out this test greatly improves speed.
[entropy.server] injected_library_dependencies_test: add status output back
[entropy.server] extended_dependencies_test: add use_cache parameter
[entropy.server] refactor dependencies_test() and _deps_tester()
[entropy.server] extended_dependencies_test: add disk caching

The test phase is called frequently in both commit and push phases.
However, between commit and push there are no changes to the repository
database content and caching out this test greatly improves speed.
[entropy.db] EntropyRepository.checksum: add "include_dependencies" argument

include_dependencies can be used to include dependencies information
into the computed checksum.
[entropy.server] extended_dependencies_test: use checksum(include_dependencies=True)