- inlcude opencl source code during compile

- amd/nvidia add hard limit that 64MiB memory keeps free
- improve nvidia auto suggestion (take care of lmem)
- add c++11 flag to nvidia compiler

- add excecutor to the singleton export list

- pass all singletons into the backend libraries
- move some cpu config features from the cpu config file to the global config.txt
- add global jconf to the xported singleton list

- fix build documentation
- fix plugin load methods
- fix symbol export for plugins

- add `CUDA_ENABLE`
- add `OpenCL_ENABLE`

- fix broken windows support

- add config file editor
- move telemetry out of minethd

- add Plugin.h to load a backend
- add backend interface

- move needed files from root to backend folder

- add backend
- add auto suggestion

Env variable "MICROHTTPD_ROOT" is ignored by cmake

Fixing bug in CMakeLists.txt preventing to pick up microhttpd library root as defined in environment variable "MICROHTTPD_ROOT"
Example: "export MICROHTTPD_ROOT=/opt/gnu/libmicrohttpd-0.9.55" will be ignored without this fix

Fixes README.md typo

Just deleted repeated word :)

build_xmr-stak_docker script improved

fix typos in config.txt

Race condition fix

Build documentation improved and added "docker script" for building xmr-stak for other distributions

Typo Fix

merge master back to dev

use precompiled dependencies

- update appveyor CI
- update `WINCOMPILE.md` guide

Fix `Lare` -> `Large`

fix appveyor tests

disable OpenSSL to pass the CI

Installation steps for Ubuntu 14.04 added