Fixed EZP-22997: Incorrect code documentation for method ContentService.prototype.loadContent()
Merge pull request #43 from sunpietro/ezp-22997-checking-params-load-content-method

Ezp 22997 - Incorrect code documentation for method ContentService.prototype.loadContent()
EZP-23262 - corrected description of contentTypeId param
Merge pull request #44 from sunpietro/EZP-23262-content-create-struct

EZP-23262 - Incorrect code documentation for ContentCreateStruct()
EZP-23418 - the contentTypeGroups REST API root is autodiscovered by the loadContentTypeGroups method
Merge pull request #47 from sunpietro/ezp-23418-loadcontenttypegroups

EZP-23418 - The contentTypeGroups REST API's root should be autodiscovered inside the loadContentTypeGroups method