Add dblib/freetds connect as SQL Server option, fixes #367
Add dblib/freetds connect as SQL Server option, fixes #367

Allows connecting to SQL Server on Mac/Linux.

boedy/phinx,courtney-miles/phinx,kevbaldwyn/phinx,boedy/phinx,gnugat/phinx,dankempster/phinx,curtisgibby/phinx,igormx/phinx,jimdoescode/phinx,BambooHR/phinx-mt,laurin1/phinx,lornajane/phinx,stevemarksmonii/phinx,angelorighi/phinx,dancryer/phinx,aCodify/phinx,dunknicoll/phinx,t1gor/phinx,daniel-gomes-sociomantic/phinx,berarma/phinx,PinZhang/phinx,rquadling/phinx,k10r/phinx,gerkirill/phinx,vitormattos/phinx,aCodify/phinx,robmorgan/phinx,HavokInspiration/phinx,DeltaPHP/phinx,lzpfmh/phinx,castamir/phinx,ikagawa/phinx,Thamrongsak/phinx,kamioftea/phinx