Fix crash when closing a window because some toolbelt tools had a notification that fired after the pseudoterminal dies but after shutdown

slow down jobs timer when not key window. optimize jobs timer if no changes. fix cursor after reloading a table view in toolbelt.

Clean up BookmarkListView a bit. Add ability to change font size of bookmark list view. Remove useless toolbar delegate. Fixed drawer-related memory leaks. Added clear button to paste history. General cleanup of drawer-related things. Make all tools small-font. Hide tool close button when there's only one. Fix bugs around which views are visible, confusion with user defaults. Add jobs tool.

Improved BookmarkListView interface. Add toolbelt menu item. Add pref to show drawer. Add modifier + click to profiles. Save toolbelt prefs.

Improved BookmarkListView interface. Add toolbelt menu item. Add pref to show drawer. Add modifier + click to profiles. Save toolbelt prefs.

Add uriToken applescript command at the app level. It returns a token that you use as the token arg to a URI request.

Add support for iterm2:// URLs. For the host, use newtab (to open a new tab or new window if needed), newwindow (to open a new window always), current (to use the current session), or tryCurrent (to use the current session or open a new window if needed). Pass a profile name in the optional profile query arg. If quiet is passed as a query arg then startup activities will be skipped. If the command query arg is passed, it is written to the term followed by a newline.

Add proprietary escape code to copy text to the clipboard. To use, send esc]50;CopyToClipboard=X^G followed by text followed by esc]50;EndCopy^G, where X is a clipboard name of ruler, find, font, or general. If not specified, general is used.

Add proprietary escape code <esc>]50;SetProfile=X^G where X gives a profile name to switch this session to. If =X is omitted then the default profile is used.

Change how we decide if a window is in Lion fullscreen (it used to say NO if a new window was created while in fullscreen because that would not cause a toggle). Allow the hotkey window to open in the same space as a lion fullscreen iTerm2 window.