Improved device donfigurability, enhanced profiling, several performance and usability enhancements

Porting the wiki to github

Added JNI-side caching of compiled binaries per kernel per device
Added java-side support for control of binary caching
Added facility to cleanUpArrays() in a kernel, frees (most of) GPU memory associated with a kernel but retains JINContext to allow kernel reuse

Add parenthesis around conditional expression

beta version of Device configuration changes and introduction of KernelManager - reverting some accidentally commited files