Added temporal model generation without primary_key
Variable name mistype caused by copy&paste
Added nestedset model generation without primary keys
Add special temporal and nestedset model fields to the head of properties
Model types moved out of no timestamp option
Primary key added to temporal model, model definitions generated better
Nestedset copy&paste fix
Change in order of new lines
Title and tree-id are now optional, have to be passed in cli (Model Nestedset)
Nestedset added support for read_only fields
In case of temporal and nestedsets no_timestamp defaults to true
Adds newline
Merge pull request #220 from sagikazarmark/1.8/develop

Added support for generating nestedset and temporal model