improving concurrency in files
Merge remote-tracking branch 'nuvolabase/master'
first version of 2q was implemented and tested
Let OMVRBTreeRID and OMVRBTreeRIDSet classes implement ORecordLazyMultiValue interface
JSON: disabled pretty print by default to sabe precious bytes
Updated Binary protocol to rel. 15 supporting SET types natively

Until rel. 14 LIST and SET were stored in the same way using []. Now
Sets are stored as <>.
Optimization of 2q cache
LinkedLists replaced with LRULists
Lock on evicted items was fixed
First version of concurrent test(need refactoring)
Merge remote-tracking branch 'nuvolabase/master'
mvtbtree: supported case when serialized object was in form of list []
Minor: changed test for asynch query
code was reformatted
refactoring of concurrent test
SQL:  fixed context problems
Merge branch 'master' of https://github.com/nuvolabase/orientdb
allows min and max to work also in projections
Issue #1404.  Local paginated storage was added without tests.
Merge pull request #1415 from pellyadolfo/master

allows max and min functions to work also in projections
SQL min: fixed bugs introduced by last Adolfo's commit. Improved performances avoiding to have a temporary array in memory, but rather used the iterator
Create Function console command

Fixed missing command in available commands

Added parameters to the existing command parser