Change the python.new.bat and svn.new.bat to work around potential dynamic dll loading issues.

Review URL: http://codereview.chromium.org/113323

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@15938 0039d316-1c4b-4281-b951-d872f2087c98

bootstrap/win/python.new.bat

-@"%~dp0python\python.exe" %*
+@echo off
+setlocal
+set PATH=%~dp0python;%PATH%
+"%~dp0python\python.exe" %*

bootstrap/win/svn.new.bat

-@"%~dp0svn\svn.exe" %*
+@echo off
+setlocal
+set PATH=%~dp0svn;%PATH%
+"%~dp0svn\svn.exe" %*