Updated rhumsaa/uuid package version
Fixed Use Decleration, Added Increment Variable
Added missing Use Declaration, Moved Increment Var

Moved the incrementing variable to the Model Class to solve the
following issue.

Illuminate\Database\Eloquent\Model and
Eloquence\Database\Traits\UUIDModel define the same property
($incrementing) in the composition of Eloquence\Database\Model. However,
the definition differs and is considered incompatible. Class was
composed
Merge pull request #9 from DraperStudio/master

Fixed Use Declarations and Definitions, Moved Incrementing Variable