Merge pull request #5 from jswiergo/build-fixes

Fixes broken unit tests (#4)
Add outputBelief for nodes
Remove d->inputPipline
Fixed unit tests
Simplify CalcNodeInputOffsets
Make belief data structures more flexible
Update unit tests for last changes; Change node->pBelief to node->belief
Add possibility to configure node sizes separately for each layer
More tests
Remove updateCentroid_node which was a copy&paste of InitNode
Fix missed children in Add/KillCentroid functions (unused yet)
Merge pull request #6 from jswiergo/dynamic-structs

More flexible structs + configurable  sizes of nodes
fixed CMakeLists.txt files
more compile fixes
tweak unit test to work with mingw. Still needs fixing.
oops. typo in av_log_set_level
created WindowsBuild.txt instructions.
Updated README and fixed typos in WindowsBuild.txt
updated instructions to install CMake
Renamed WindowsBuild.txt to WindowsBuild.md.
Hopefully will render better on github.