[WIP][issue #83]Story remodified upon requests
[WIP][issue #83]UML modified
[WIP][issue #83] UML and documentation modified, and code cleaned
Merge pull request #412 from MGhanem/Omar-Hossam_C4F3_RO

C4F03 - Feature, record suggested synonym for a given word RO
[issue # 362][MC][pulling master and fixing conflicts]