After a checkout, read the project properties from the new working copy to get the post-update hook script (if there is one specified).

git-svn-id: http://tortoisesvn.googlecode.com/svn/trunk@25855 4cfb86a4-2c7a-11df-bd14-c1e331e6ceac
Remember the state of the checkbox "Omit externals".
(Closes issue #664) : remember "Omit externals" setting


git-svn-id: http://tortoisesvn.googlecode.com/svn/trunk@25856 4cfb86a4-2c7a-11df-bd14-c1e331e6ceac