Updated lapack_wrap.h to compile with ACML library.
Fixed bug in Combiner: Combiner now automatically inits before copy so that copies will have the same right Index.
Fixed a warning in sweeps ExpM helper class.
Fixed bug in IndexSet constructor for case when 8 indices provided. Improved error printout in getperm. Removed some debugging code in tevol.cc.
Changed generation of Index unique Reals to alternate sign and use
current time on program start as seed. Fixes #51.