decorator for lazy ininitalized properties
allow storage name override for lazy properties
remove obsolete test suite runners
enhance tek.test.Spec

add config auto-setup for modules given in the init parameter 'configs'

set debug config parameter, prohibit config files

print all warnings during the test run

add _wait_for helper method that sleeps until the predicate function
argument returns true, then asserts its value
use Config rather than Configurations
don't use deprecated name SafeConfigParser
formatting
compensate for empty list
remove all variants of configurable() in favor of new implementation

this method uses lazy property descriptors to achieve the same thing
without the annoying side effect of shadowing AttributeErrors occuring
in other property methods due to the previously implemented override of
__getattr__().
export lazy_class_property
prefix lazy prop test classes with _ to hide from spec