introduces basic matrices
clears test dir
adds fermionic and gauge field
adds post-inc/dec operators to Index<>
adds su(N) base
renames sun* to su*
adds heatbath paper
adds su(n) random factory
adds comments
adds solver class bodies
adds dirac operators class bodies
adds neighbour lookup
gamma matrix generator
gamma test
Merge branch 'master' into develop
removes pdfs, adds .bib instead