Set svn:ignore properties for files in .gitignore.

git-svn-id: http://acl2-books.googlecode.com/svn/trunk@2192 303c5b2c-9740-0410-b014-fd8f9db7be32
gl: add vacuity check in AIG mode

git-svn-id: http://acl2-books.googlecode.com/svn/trunk@2195 303c5b2c-9740-0410-b014-fd8f9db7be32
try-gl hint: use acl2::* instead of acl2::x as the magic variable name

git-svn-id: http://acl2-books.googlecode.com/svn/trunk@2196 303c5b2c-9740-0410-b014-fd8f9db7be32