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Grant by dmeehan1968

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Grants by paddor and mbarbisan

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RELICENSE: add relicense agreement from msune

Add RELICENSE document for msune contributions, both for:

* marcdevel at gmail dot com
* marc at voltanet io

* Introduce DRAFT zmq_ctx_set_ext() and zmq_ctx_get_ext() methods. Change
ZMQ_THREAD_NAME_PREFIX to allow for non-numeric thread name prefixes.

* UDP engine aborts on networking-related errors from socket syscalls #2862

Problem: appveyor binary archives do not contain import libraries

Solution: include all *.lib files

* UDP engine aborts on networking-related errors from socket syscalls #2862

* Add relicense statement

Add relicense agreement from Spotify AB

[CMake] Add ENABLE_PRECOMPILED option

You might want to disable this flag when building with Ninja.

no void pointer to store function pointer

RELICENSE: add grant by Daniel Krikun

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Solution: fix syntax and formatting, remove C-ism for defining struct

Re-license Robert G. Jakabosky (Neopallium)

RELICENSE:  Add relicensing grant

RELICENSE: chymanfx

Adds relicensing grant

Adds relicensing grant

RELICENSE: John Murphy

Scripts for graphing benchmark results

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RELICENSE: Joel Lauener

* Add relicense grant
Signed-off-by: Dhammika Pathirana <dhammika@gmail.com>