added timestamp support for mapping
added some changes
simplified mapping
fixed mapping identifier
restructured project
added object mapping
fixed example
made example create random entries
Merge branch 'feature/simplifyMapper' into develop
changed build settings
improved performance for bulk updates
some changes ;)
finlaized mapping
added cache for configurations
added error for persisting data
clearified error when persisting objects
try to made it more dry
a little more DRY
fixed bug
nillified undoManager for better performance in writer and private contexts