Add install support in to makefile.

I have tried a lot of variant how to install all needed files into outputs directory. And I have came up to conclusion that I can't make some generic system without changing whole make system.
The most easy and fast way how to add manageable install target is to write target directly. In all cases I would need to set two paths anyway first which file copy and second where to copy it.
Merge pull request #1 from Siprj/master

Make install target