Add hello presentation by Felix
unignore hello presetation in folder doc/

	modified:   .gitignore
	new file:   doc/hello.html
remove refenreces to TPOSS from slides

	modified:   doc/hello.html
fix regression in b877b67dac9f3e48f11be59714d48dfcca6e7a9b, add atoms
as strings
fix parsing bug ref #1612
Merge branch 'master' of git.tpip.net:hello
Merge branch 'master' of git.tpip.net:hello
add encoder for timestamps
add .arcconfig
fix common tests

Summary:
several test where broken, but also some logic error in hello where discovered
- JSON RPC 2.0 error return "Id" needs to be null in some cases
- run_binary_request in stateless handler expected wrong return error
- batch request where executed in reverse order, and therefore reply lists where reordered as well
- invalid_response error reply was returned without proper proto_error tag
- tests need build depend on proper

Test Plan: tetrapack test

Reviewers: druss, tbreddin, hsychla

Differential Revision: https://review.tpip.net/D87
keep item ordring in json objects when decoding

Summary:
previosly, the attributes in objects where reversed. this really should
have no impact, since attrbiute ordering is irelevant, however it
turns that enforceing ordering makes testsuites simpler, so i would
suggest to include this.

Test Plan: tetrapak test

Reviewers: tbreddin, druss, kseidens, hsychla

Reviewed By: druss

Differential Revision: https://review.tpip.net/D102
exclude .arcconfig from packages

Summary: modified:   tetrapak/config.ini

Test Plan:
Check the one-line change.
If you must, do a

  tetrapak pkg:deb

or

  tetrapak pkg:ipkg

and check the output for .arcconfig not being added to the package.

Reviewers: tbreddin, druss, aschultz, vtarasen

Reviewed By: tbreddin

Differential Revision: https://review.tpip.net/D227
Add more info to the badurl error.

Summary: This helps identifying the cause more easily.

Test Plan: build

Reviewers: hsychla

Reviewed By: hsychla

CC: aschultz, druss

Differential Revision: https://review.tpip.net/D237
move argument validation from hello internal to yang models

Summary: move argument validation from hello internal to yang models

Test Plan: tetrapak test

Reviewers: druss, aschultz, vtarasen, hsychla

Reviewed By: hsychla

Maniphest Tasks: T4

Differential Revision: https://review.tpip.net/D88
* delete ct:pal
Revert "move argument validation from hello internal to yang models"

This reverts commit 218d18006b2c04df3d6912c3eda9b0e7860cf13a.

Conflicts:
	src/hello_validate.erl
Make Hello work with Cowboy 0.8.x
cowboy-0.8.* support for hell_http_listener and hello_sockjs_listener
Update hello_sockjs_listener.erl
[hello] fix body encoding

Test Plan: on peach INT

Reviewers: hsychla

Reviewed By: hsychla

CC: mkraemer, aschultz

Differential Revision: https://review.tpip.net/D1201
move argument validation from hello internal to yang models

Summary: move argument validation from hello internal to yang models

Test Plan: tetrapak test

Reviewers: druss, aschultz, vtarasen, hsychla

Reviewed By: hsychla

Maniphest Tasks: T4

Differential Revision: https://review.tpip.net/D88