Weekly github digest (Web Platform WG specs)

Issues
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* w3c/webcomponents (+2/-0/💬59)
  2 issues created:
  - Protocols/traits for custom elements (by annevk)
    https://github.com/w3c/webcomponents/issues/811 [custom-elements] 
  - Extensible template parts (by annevk)
    https://github.com/w3c/webcomponents/issues/810 [templates] 

  9 issues received 59 new comments:
  - #809 Need a callback for when children changed or parser finished parsing children (26 by franktopel, annevk, rniwa, justinfagnani, WebReflection, caridy)
    https://github.com/w3c/webcomponents/issues/809 [custom-elements] [html-dom] [needs concrete proposal] [v2] 
  - #807 Make JavaScript Files a Valid Entry Point to a Web Page (11 by Lonniebiz, mikesamuel, shannon)
    https://github.com/w3c/webcomponents/issues/807 
  - #704 [templates] Ensure that template instantiation actually improves the platform (10 by Jamesernator, bahrus, LucaColonnello, dmitriid)
    https://github.com/w3c/webcomponents/issues/704 [templates] 
  - #738 Custom pseudo-classes for host elements via shadow roots (:state) (3 by rniwa, annevk, othermaciej)
    https://github.com/w3c/webcomponents/issues/738 [needs concrete proposal] [shadow-dom] 
  - #762 Mechanism for setting the tabindex focus flag without sprouting tabindex attribute? (3 by rniwa, domenic)
    https://github.com/w3c/webcomponents/issues/762 [custom-elements] [needs implementer interest] 
  - #802 Spring 2019 F2F Agenda (2 by rniwa, LucaColonnello)
    https://github.com/w3c/webcomponents/issues/802 
  - #187 Need callback for form submit data (2 by tkent-google, domenic)
    https://github.com/w3c/webcomponents/issues/187 [custom-elements] [needs concrete proposal] [needs consensus] 
  - #811 Protocols/traits for custom elements (1 by domenic)
    https://github.com/w3c/webcomponents/issues/811 [custom-elements] 
  - #786 Web Components F2F Spring 2019 (1 by rniwa)
    https://github.com/w3c/webcomponents/issues/786 

* w3c/manifest (+1/-0/💬16)
  1 issues created:
  - Add Manifest option for specifying browser app picker behavior (by raymeskhoury)
    https://github.com/w3c/manifest/issues/764 

  3 issues received 16 new comments:
  - #764 Add Manifest option for specifying browser app picker behavior (11 by reillyeon, fallaciousreasoning, raymeskhoury, dominickng, kenchris)
    https://github.com/w3c/manifest/issues/764 
  - #582 App shortcuts / actions (3 by marcoscaceres, aarongustafson)
    https://github.com/w3c/manifest/issues/582 [Feature Request] 
  - #399 Privacy Review: handle start_url tracking  (2 by aarongustafson)
    https://github.com/w3c/manifest/issues/399 [Editorial clarification] [question] 




Repositories tracked by this digest:
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* https://github.com/w3c/webcomponents
* https://github.com/w3c/FileAPI
* https://github.com/w3c/filesystem-api
* https://github.com/w3c/gamepad
* https://github.com/w3c/manifest
* https://github.com/w3c/manifest-csp
* https://github.com/w3c/pointerlock
* https://github.com/w3c/push-api
* https://github.com/w3c/screen-orientation
* https://github.com/w3c/workers
* https://github.com/w3c/websockets
* https://github.com/w3c/webmessaging
* https://github.com/w3c/webstorage
* https://github.com/w3c/eventsource
* https://github.com/w3c/ime-api
* https://github.com/w3c/uievents
* https://github.com/w3c/uievents-code
* https://github.com/w3c/uievents-key
* https://github.com/w3c/clipboard-apis
* https://github.com/w3c/editing
* https://github.com/w3c/selection-api
* https://github.com/w3c/input-events
* https://github.com/w3c/microdata
* https://github.com/w3c/2dcontext
* https://github.com/w3c/DOM-Parsing
* https://github.com/w3c/dom