Added instructions for non default postgres passwords
Added instructions for non default postgres passwords

Hey,

I was going through the Up and Running guide and ran into a problem with my non default postgres role password. Having a look in the ecto.create specific part of the documentation I found a whole host of error messages and their resolutions I thought this might be a good addition?

I've attempted to keep to language similar to that used on description of the other issues.

Thanks,
.FxN
0x00evil/phoenix,optikfluffel/phoenix,evax/phoenix,Gazler/phoenix,keathley/phoenix,phoenixframework/phoenix,Joe-noh/phoenix,optikfluffel/phoenix,nshafer/phoenix,mschae/phoenix,eksperimental/phoenix,keathley/phoenix,Gazler/phoenix,bratsche/phoenix_guides,mschae/phoenix,bsmr-erlang/phoenix,mobileoverlord/phoenix,Kosmas/phoenix,korobkov/phoenix,tokafish/phoenix_guides,nshafer/phoenix,mitchellhenke/phoenix,nshafer/phoenix,stevedomin/phoenix,optikfluffel/phoenix,0x00evil/phoenix,korobkov/phoenix,rafbgarcia/phoenix,rafbgarcia/phoenix,evax/phoenix,pap/phoenix,Kosmas/phoenix,0x00evil/phoenix,wsmoak/phoenix_guides,dmarkow/phoenix,mobileoverlord/phoenix,michalmuskala/phoenix,gjaldon/phoenix,jwarwick/phoenix,Joe-noh/phoenix,mitchellhenke/phoenix,dmarkow/phoenix,stevedomin/phoenix,gjaldon/phoenix,michalmuskala/phoenix,pap/phoenix,bsmr-erlang/phoenix,trarbr/phoenix,phoenixframework/phoenix,trarbr/phoenix,eksperimental/phoenix,jwarwick/phoenix,phoenixframework/phoenix,rafbgarcia/phoenix