Added Sequel::Migrator.run method to allow for the :column option
Added Sequel::Migrator.run method to allow for the :column option

* Enables having multiple migration trees through changes
  in the apply method accepting a schema_info_column
* Example added in comments of the new run method

nju520/sequel,uhoh-itsmaciek/sequel,dennis-d/custom_sequel,beni55/sequel,offshore-safety/sequel,mpalmer/sequel,reubano/sequel,nju520/sequel,gferguson-gd/sequel,mpalmer/sequel,chef/sequel,knut2/sequel,bigfix/sequel,pfarrell/sequel,seeARMS/sequel,offshore-safety/sequel,tmm1/sequel,davidbegin/sequel,t-morgan/sequel,seeARMS/sequel,beni55/sequel,nicohvi/sequel,yazshel/sequel,reubano/sequel,t-morgan/sequel,uhoh-itsmaciek/sequel,freshpay/sequel,dennis-d/custom_sequel,davidbegin/sequel,freshpay/sequel,gferguson-gd/sequel,offshore-safety/sequel,pfarrell/sequel,knut2/sequel,Marketcircle/sequel,yazshel/sequel,nicohvi/sequel