Minor: added support for READ/LOAD operation
Merge branch 'develop' of https://github.com/orientechnologies/orientdb into develop
Fixed issue #1521 about JSON management of embedded lists with different types
Fixed bug on MVRB-Tree-RID-Set built with default 8 items as threshold instead of reading the configuration
Merge branch 'develop' of https://github.com/orientechnologies/orientdb into develop