Create a global option to follow symlinks in project-wide search

Fixes https://github.com/atom/find-and-replace/issues/271
:arrow_up: release-notes@0.41
:arrow_up: language-html@0.27.0

For handlebars template scope fix
Add `atom.inSafeMode()`
Pass the load settings through so all windows share devMode and safeMode
Default devMode and safeMode to false
Pull load settings out of the focused window
Upgrade notifications to provide more user info
Upgrade notification@0.20.0
Merge pull request #4698 from atom/bo-fix-load-settings

Pass safeMode and devMode load settings to new windows
:arrow_up: release-notes@0.42
:arrow_up: package-generator@0.34
:arrow_up: release-notes@0.43
Prepare 0.164
:arrow_up: snippets@0.60.0
Upgrade notifications to fix issue button in windows
:arrow_up: language-ruby@0.45
Merge pull request #4689 from ebayer/follow-symlinks

Create a global option to follow symlinks in project-wide search
Update follow symlinks setting description
Default followSymlinks to false