add ConstantDict definition
add test utilities with EnhancedTestCase and use it in all tests, add tests for ConstantDict
fix remark
bump version
Merge branch 'master' into ConstantDict

Conflicts:
	test/missing.py
Merge pull request #109 from JensTimmerman/fancylogger_classname

added a default option to show classname in log record
replace ConstantDict with FrozenDictKnownKeys, update unit tests
Merge branch 'master' into ConstantDict

Conflicts:
	test/fancylogger.py
	test/missing.py
add frozendict module
fix conflict resolution
resolve remarks and enhance unit tests
raise KeyError for unknown keys, and check KeyError in unit tests
only use EnhancedTestCase where actually useful
remove unneeded import
Merge pull request #107 from boegel/ConstantDict

add ConstantDict and enhance unit tests
derive from DictMixin to make it Python 2.4 compatible, define missing keys() methods
fix unit test, drop missing import
add reference
bump version
Merge pull request #111 from boegel/fix_frozendict

Fix Python 2.4 compatibility of frozendict