Added instructions for building on FreeBSD

Appveyor fix

* Handle memset not in scope error in Alpine compiler

fix auto suggestion for 64+ cores

Changing "Copy&Paste" output line to be easily parsable (showing BEGIN / END)

use native hwloc bitmap to find hardware cores

Add appveyor initial file

windows compile HowTo

add Windows VS2017 support

Fixes building on Alpine Linux

add psychocrypt to donate-level.h

increase default dev donation

based on the reddit poll we get 45.99% support to increase the developer donation
https://www.reddit.com/r/MoneroMining/comments/6eu00j/question_xmrstak_default_donation_increase_to_2/

- fix microhttpd information
- fix spelling

this PR based in some on https://github.com/fireice-uk/xmr-stak-cpu/commit/1a1d7b4697ed8c72350fdff582f87e101a565599 thx @Adam

Adding osx for Travis CI

Dev branch with mac fix

add documentation howto install all dependencies and compile with VS2017

Initial Travis CI script added

- add windows socket libraries
- search for windows name of all dependencies
- add missing link step to the intermediate static library

hwloc NUMA memory binding

optimize double hash implementation

- add function `bindMemoryToNUMANode()`
- add `affinity` member to `minethd`

Feature FreeBSD support

use single hash implementation within the function `cryptonight_double_hash`

Adding Fedora installation steps