Windows updates for VS2010

git-svn-id: https://code.crt.realtors.org/svn/librets/librets/trunk@1611 fe7ac059-47f5-0310-8599-d0339b4e125c
Remove blank line

git-svn-id: https://code.crt.realtors.org/svn/librets/librets/trunk@1612 fe7ac059-47f5-0310-8599-d0339b4e125c
Set up for 1.6.0 release

git-svn-id: https://code.crt.realtors.org/svn/librets/librets/trunk@1613 fe7ac059-47f5-0310-8599-d0339b4e125c