Add an application object parameter to watcher callback
Call app watcher handler even if app name is nil

Passing the app with a pid object (at minimum) means that it can still
be useful to call the handler.
Don't strip debugging symbols when building a debug build. Seriously
Build extensions with debug information and add a module that forces Hammerspoon to crash
remove Crashlytics header
ignore dSYM files
Also remove reference to Crashlytics.h
Make extension building skip debugging flags when building a release build
Add hs.hints
Don't initialise hs.hints with a default keybinding. Instead, modify hs.hotkey.modal to allow a modal state to exist that has no top-level hotkey. This allows extensions like hs.hints to control the modal state programatically
Guard hs.hotkey.modal.new against mixed nil parameters
Merge pull request #161 from tmandry/appwatcher-app

Add an application object parameter to watcher callback
Slightly tweak apidocs for application.watcher.new()
Prepare for 0.9.13
Hammerspoon test target causes build settings to emit multiple BUILT_PRODUCTS_DIR values, breaking the release script
Update appcast for 0.9.13