build-sys: Build with json-c >= 0.11

The pkg-config file name changed with json-c 0.11, so configure checks
need to accordingly change. Also means we shouldn't try to use pkg-config
directly for the json_tokener_get_error() check.

As a result of this, it becomes apparent that murphy/common/json.h
implicitly depends on json.h (and thus so do all files that include it).
Fixing this would require moving out typedefs/macros linking mrp_json_*
to json_* from that header.
build: install murphy-resource.pc file correctly.
resource-c: don't link resource clients to murphy-core.
common: add missing json to pkg-config, removed incorrect dbus and glib.
resource-native: let clients override default logging.
build-sys: native resource library does/can not need murphy-core.
Merge branch 'master' of github.com:otcshare/policy-internal
resource-c: added support for automatical releasing of resource sets.
resource-c: handle attribute values changed by the resource backend.
resource-c: fix a bug with the autorelease flag handling.