Add *.so to .gitignore.

This is so we can ignore libv8_g.so and libv8preparser_g.so when running git status.

TEST=git status. You should not see the above libraries in the output.

R=mnaganov@chromium.org
Signed-off-by: Thiago Farina <tfarina@chromium.org>

Review URL: http://codereview.chromium.org/7839036/

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9182 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

.gitignore

 *.a
 *.exe
+*.idb
 *.lib
 *.log
 *.map
 *.mk
 *.ncb
+*.pdb
 *.pyc
 *.scons*
+*.so
 *.suo
 *.user
 *.xcodeproj
-*.idb
-*.pdb
 #*#
 *~
 .cpplint-cache