Added 'lib' and 'modules' folders which should also be excluded, since libs...

Added 'lib' and 'modules' folders which should also be excluded, since libs are automatically fetched from dependencies.yml.
Also removed duplicate 'elicpse' entry.

PlayFramework.gitignore

@@ -7,10 +7,11 @@
 # Ignore Play! working directory #
 db
 eclipse
+lib
 log
 logs
+modules
 precompiled
 tmp
 test-result
-eclipse
 server.pid