tree a2564a0aa4ee3ebb7ff4980ca86dbac09ecbec7e
parent c29df57e5abb09c7e1ceed153e8f2b906f522d7b
author Mathias Agopian <mathias@google.com> 1243385097 -0700
committer Mathias Agopian <mathias@google.com> 1243385259 -0700

minor clean-up to Rect and Point.

- return "const" objects for overloaded operators to disallow constructs like: (a+b) = c;
- don't return references to non-static members, it's not always safe.
- Point.cpp was empty, so get rid of it