Implemented get cachelogs for user
added property to cachelog pojo
extended parser to read new property
in coordinates we always use a dot as separator, no localization needed?
cleanup
Cleanup after pull request

Added JUnit test
Fixed implementation bugs (Date filter still not works)
Added ids for CacheLogType enum
Added since to Javadoc for new method getUsersGeocacheLogs
Improved error reporting

Stack trace now contains also server side exception details
Fixed ArrayIndexOfBoundsException when reading error output and length is -1 (end of stream)