Fix AppHost to accept basic auth userinfo
Bump to 2.5.1
Return object from ExecuteScript, no ToString() or casting fixes #109
Merge branch 'master' of github.com:featurist/coypu
Merge branch 'execute-script-returns-object'
Handle stale elements/windows by exceptions rather than stale checks

- fixes #112 AcceptModalDialog() fails in IE11

Also:

- Override timeout in Exists() and Missing() fixes #112
- NoAlertPresentException when Disposing Chrome Browser fixes #119

(sorry for the mega commit, got a bit carried away)