Merge lp://qastaging/~snappy-dev/snapcraft/docs into lp://qastaging/~snappy-dev/snapcraft/core

Add intro and tutorial docs.

The intro file explains Snappy and the general Snapcraft concepts a bit. It covers the same material as flow.md, so I dropped that file.

The tutorial file goes through crafting a webcam demo snap [1].

I want to add an installing/testing/uploading-to-store section too, but I want to get some experience using the webcam bit and dealing with apparmor for it (seeing if I can get kvm to use my laptop webcam or if I need to have a real USB webcam with a beaglebone). But that addition can happen in a separate branch.

This is taking over from lp:~mvo/snapcraft/docs-1 since mvo is on vacation.

[1] Very similar to https://developer.ubuntu.com/en/snappy/guides/appliance-builder-guide-webcam/

Add intro and tutorial docs.

The intro file explains Snappy and the general Snapcraft concepts a bit. It covers the same material as flow.md, so I dropped that file.

The tutorial file goes through crafting a webcam demo snap [1].

I want to add an installing/testing/uploading-to-store section too, but I want to get some experience using the webcam bit and dealing with apparmor for it (seeing if I can get kvm to use my laptop webcam or if I need to have a real USB webcam with a beaglebone). But that addition can happen in a separate branch.

This is taking over from lp:~mvo/snapcraft/docs-1 since mvo is on vacation.

[1] Very similar to https://developer.ubuntu.com/en/snappy/guides/appliance-builder-guide-webcam/