[Bug Fix]#378405 Enables creation of groups with only a new person
Merge pull request #20 from diutsu/dev

[Bug Fix]#378405 Enables creation of groups with only a new person
[Minor Change] Changes course name to its abreviation on exporting the first year shifts
Merge pull request #21 from diutsu/dev

[Minor Change] Changes course name to its abreviation on exporting the f...
Minor Change: modified criteria for researcher export rest API for sotis
Bug fix:
- fixing idInternal migration
Bug Fix: Avoid NPE. Validate phone numbers an numbers.