Fix SeaMonkey version number

Prepare release

It's time...

Make BarTabUtils.findClosestLoadedTab() respect the browser.tabs.sele…

…ctOwnerOnClose preference.

Closes philikon#47

Document the stuff introduced in 2.0b3

Empty host (e.g. file:/// URIs) should also mean that the menu item i…

…sn't shown.

Changelog

Centralize some common stuff.

Use monkeyPatchMethod for isBlankBrowser as well.

TMP isn't the only add-on that provides this method, Tab Utils does as well.  But there it doesn't get set until after BarTab has initialized.  Since monkeyPatchMethod will install a setter, we can catch its setting and all is well.

Only bind the parameters we really need and that's aURI. In particula…

…r, avoid reassigning aReferrerURI as that will magically change arguments[1], too (aReferrerURI is the 2nd parameter)!