Fix a bug where hotkey windows appearing in a different display than the currently key window (in another app) would not receive focus and would forget which app was previously active. Issue 6353

The two key changes are
1. Add a method to activate the app with a completion block
2. Don't throw away the existing previous state when a non hotkey window becomes key during a rollin. The logic already existed for a rollout.
Here's what would happen:

rollInAnimated
  [NSApp activateIgnoringOtherApps:YES]
  rollInAnimatingInDirection:
(if there's no animation, the rollin finishes immediately)
App becomes active
A non-hotkey window becomes key

Now, here's what happens:

rollInAnimated
  [NSApp activateIgnoringOtherApps:YES]
App becomes active
A non-hotkey window becomes key, but it's ignored because there's a roll-in in progress
rollInAnimatingInDirection:
(if there's no animation, the rollin finishes immediately)

Keep another app from becoming active after local auth dialog from pw manager sheet attached to hotkey window is dismissed.

Fix a hang when hiding a hotkey window that has sheets (was using deprecated API)

Issue 5860

There's a hack to make the app active when the space changes to a lion fullscreen window and the app isn't active. This is needed only for LSUIElement apps, where the OS gets confused. Limit the hack to LSUIElement mode since you could use spaces and have two monitors. Issue 5489.

Merge in code from hotkeyWindowsInPanels branch. Support multiple hotkey windows. Update the shortcut input view. Add support for floating panel terminal windows.

Access app delegate via -[iTermApplication delegate] instead of casting down from NSApplication APIs

Move source into sources/ directory. Delete a few unused images in the process and fix a reference to an Aqua image in FindView

Fix bug where iTermSearchField would capture arrow key presses even when it wasn't key. Became an issue first with the command history tool. Fixes bug 2865.

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

"Autocomplete.m"
"DVR.h"
"DVR.m"
"DVRBuffer.h"
"DVRBuffer.m"
"DVRDecoder.h"
"DVRDecoder.m"
"DVREncoder.h"
"DVREncoder.m"
"DVRIndexEntry.h"
"DVRIndexEntry.m"
"EncodingsWithLowerCase.plist"
"English.lproj/Autocomplete.xib"
"English.lproj/FindView.xib"
"English.lproj/GlobalSearch.xib"
"English.lproj/PasteboardHistory.xib"
"English.lproj/iTerm2 Help/"
"FakeWindow.h"
"FakeWindow.m"
"FindView.h"
"FindView.m"
"FindViewController.h"
"FindViewController.m"
"GlobalSearch.h"
"GlobalSearch.m"
"NSDateFormatterExtras.h"
"NSDateFormatterExtras.m"
"PSMTabBarControl/iTermDiffs/"
"PTYTab.h"
"PTYTab.m"
"PasteboardHistory.h"
"PasteboardHistory.m"
"Popup.h"
"Popup.m"
"RegexKitLite/"
"ScreenChar.h"
"ScreenChar.m"
"SessionView.h"
"SessionView.m"
"TextViewWrapper.h"
"TextViewWrapper.m"
"UKCrashReporter/"
"WindowControllerInterface.h"
"crash_report_to_plist.py"
"iTerm.xcodeproj/georgen.mode1v3"
"iTerm.xcodeproj/georgen.pbxuser"
"iTermExpose.h"
"iTermExpose.m"
"iTermSearchField.h"
"iTermSearchField.m"
"images/IBarCursor.png"
"images/bell.png"
"images/bell.psd"
"images/screen.png"
"images/wrap.psd"
"images/wrap_to_bottom.png"
"images/wrap_to_top.png"
"nightly.sh"
"ply/"
"tests/UTF-8-demo.txt"
"tests/a-harpoon.txt"
"tests/acid.txt"
"tests/apple.txt"
"tests/bogusutf8.txt"
"tests/bold-complex.txt"
"tests/bug439.applescript"
"tests/colors.sh"
"tests/combiningmark.txt"
"tests/dw_sip.txt"
"tests/enclosing-mark.txt"
"tests/english_and_chinese.txt"
"tests/greek.txt"
"tests/harpoon.txt"
"tests/low-surrogate.txt"
"tests/radical.txt"
"tests/ranges.py"
"tests/register_bonjour_host"
"tests/reverse_mode.txt"
"tests/searchtext"
"tests/set_icon_title.txt"
"tests/set_icon_window_title.txt"
"tests/set_window_title.txt"
"tests/setbg-blue"
"tests/setbg-yellow"
"tests/setpal"
"tests/spaces.txt"
"tests/spacing-combining-mark.txt"
"tests/spam-tabs.cc"
"tests/suits.txt"
"tests/surrogatepair.txt"
"tests/too_many_parts.txt"
"tests/u2000b.txt"
"tests/zeta.txt"

Make hockey toggle app rather than only bringing it to the front. Fixes bug 151. Change how tags are displayed in bookmark list view. Allow multiple bookmarks to be selected in prefs panel. Fixes bug 120. Disable popup button for bookmarks in prefs panel when it oughtn't be used. Change Copy From to a new Copy To UI in prefs panel. Fixes bug 82. Add visual bell that flashes the screen. Fixes bug 104. Increase max speed of scroll-by-drag. Allow scroll-by-drag to reach the last line. Add slow paste feature. Fixes bug 94. Add 'close after opening bookmark' option to bookmarks window. Fixes bug 95.  Add 'open as tabs in new window' button when multiple tabs are selected in bookmark window. Fixes bug 126.