Merge pull request #156 from deniskoronchik/dev

Access levels
[sc-memory] Implement access levels in iterators (issue #157)
Merge pull request #158 from deniskoronchik/dev-lock

[sc-memory] Implement access levels in iterators (issue #157)
[sc-memory] Add acces levels check into events (issue #159)
Merge pull request #160 from deniskoronchik/dev-lock

[sc-memory] Add acces levels check into events (issue #159)
[sc-memory] Fix deadlock in events access check.
[sc-memory] Setup minimal read and maximum write access level on sc_helper initialization
[sc-builder] Setup minimal access level to data that generated with builder
[sctp-server] Port sctp-server to qt5
[sctp-server] Implement authentification