Even if with-statments are changed in websocket_server.py, it also claims syntax error for with statement in http_server.py.
Until python 2.5 is installed on tiger bot, skips websocket/tests on tiger.

* Scripts/webkitpy/layout_tests/port/websocket_server.py: use with statement

LayoutTests: Unreviewed.

Skip websocket/tests on tiger, until Python 2.5 is installed on tiger bot.

* platform/mac-tiger/Skipped: Add websocket/tests

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@59354 268f45cc-cd09-0410-ab3c-d52691b4dbfc