SeaDog
                                SeaDog is a set of NSConstraint extension to make life with auto layout even more pleasant.
                            
                        How to download and setup SeaDog
Open terminal and run command
                                            git clone https://github.com/uberbruns/SeaDog.git
                                        
                                        git clone is used to create a copy or clone of SeaDog repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with SeaDog https://github.com/uberbruns/SeaDog/archive/master.zip
Or simply clone SeaDog with SSH
                                            [email protected]:uberbruns/SeaDog.git                                    
                                    If you have some problems with SeaDog
You may open issue on SeaDog support forum (system) here: https://github.com/uberbruns/SeaDog/issuesSimilar to SeaDog repositories
Here you may see SeaDog alternatives and analogs
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