Revert "assume second argument is "Target" if no key=value supplied"

This reverts commit 7ca79e5e17b730d91a14518be1d8ffca46350d26.
Wron projects in solution
Adding a Dynamics NAV helper for build task with Dynamics NAV 2013
can run appcmd.exe and unlock configSections
Merge pull request #82 from mwjackson/master

can run appcmd.exe and unlock configSections
Adding a Dynamics NAV helper for building import files
Merge branch 'master' of github.com:fsharp/FAKE
Adding a Dynamics NAV helper for building import files
Merge branch 'master' into develop