feature/MLC-347/adding the uuid field

See merge request !38

MLC-311 "Feature/adding some missing attributes in Maintenance and maintenanceActivty entities"

See merge request !37

MLC-342/refactoring the cancellation model

Closes MLC-342

See merge request !36

missing attributes  have been added in Maintenance and MaintenanceActivity and also fixing the map association between cancellationrequest and singlereservation and add a missing attribute in clientDto and making documents with no expiration date to always be valid instead of null
  .

fixing the map association between cancellationrequest and singlereservation and add a missing attribute in clientDto and making documents with no expiration date to always be valid instead of null

Add new entity

See merge request !34

# Conflicts:
#	src/main/java/com/marketingconfort/mobiloca/common/Document/models/Document.java

MLC-347/changed some fields on the documents files.

Closes MLC-347

See merge request !33

Resolve MLC-347 "Feature/"

Closes MLC-347

See merge request !32