[INTERNATIONALIZATION] Objekt => Realty
update wrappers to support list and detail calls
refactor EmployeeWrapper
add mapper support
translate Realty properties to english
update README.md
change Energiepass to english
rename Zusatzkosten to proper english value
rename ausstattung to english
reworked query interface
add NullMapper
clear query on termination method
add tests for mapper GetFilterProperty
add api test for url generation
add MemcacheCache
closes #5 - Memcache Support