Clear incompatible pointer warning, and add static
Clear incompatible pointer warning, and add static

braydonf/libstorj-c,Storj/libstorj-c,braydonf/libstorj,braydonf/libstorj-c,aleitner/libstorj-c,Storj/libstorj-c,aleitner/libstorj-c,braydonf/libstorj