Atom 1.17.0

What's new in this version:

- Snapshot AtomEnvironment
- Optimize style sheets loading
- Fix typo in comments of text-editor-registry.js
- Restore atom environment when adding project folders to a fresh window
- Disable soft wrap on mini editors
- Don't snapshot minimatch and fix package transpilation registry on win32
- Docks
- Add atom.workspace.hide()
- Add saveFocusedPaneItem() and call it in "core:save" command
- Fixes #14102 to use ATOM_HOME if present
- Packages preloading
- Assign Package.prototype.mainModulePath eagerly for preloaded packages
- Always add opened items to the workspace
- Fix issue #14109 and #13978
- Fix observation of moved items
- fixing middle mouse button clipboard paste on linux (atom:atom#8648)
- Minor edits to CONTRIBUTING.md
- Don't store default locations
- Allow workspace item objects to be passed to Workspace.open
- Open docks when activating their panes, but not when adding items
- Allow specifying installation directory
- Update build to pre-compile packages with per-package transpilation configs
- Attempt fixing exception when trying to use portable electronUserData
- Refine Dock UX and API
- Fix a regression in hovered dock tracking
- Fix adding bundled packages to ModuleCache and increase test coverage
- Avoid errors deserializing 1.17 workspace state in prior Atom versions
- Ensure that atom-panel tags can be created via HTML
- Always focus active pane item when pane is activated
- Document pane item interface on Workspace
- Properly restore focus to center when hiding dock via toggle
- Always search a pane container w/ the given URI in workspace.open
- Require TextEditorElement eagerly
- Prevent the resize handle from covering the center
- Ensure that dock toggle affordances can always be revealed
- Fix URI resolution in openSync()
- Reduce dock initial size lookups
- Add Workspace.paneContainerForItem method
- Don't close permanent dock items
- Update Electron to 1.3.15
- Unbreak URL handlers in Atom 1.17-beta
- Disable zoom only after the window has finished loading
- Pane shouldn't steal focus from its children