Added Jansson as submodule.
Documentation update.
Added Janson version string to log output.
Deprecating "difficulty-multiplier" setting
Add algorithm aliases x11, x13, x15, x15mod, nist5, keccak
Also refactor aliasing
Merge pull request #318 from sgminer-dev/v5_0-jansson

V5 0 jansson
Events framework

Added the ability to have users run commands, reboot the system or quit
sgminer based on system events. These events can be defined and placed
throughout the sgminer source. So far the events are: "gpu_sick",
"gpu_dead" and "idle". I will document further shortly. Config example
available here: http://pastebin.com/2rRv3EzH
Added information about events
Algorithm alias fix

Added "old" algorithms and also corrected `nfactor` in case it's parsed before `algorithm`.
Fixed segfault when adding pool profile via ncurses GUI #322
Update README.md
Added "Fresh" Algorithm

Added "Fresh" Algorithm and optimized it for a slight speed increase
using extra kernels.
Updated AUTHORS.md