Removed doc/sample ... will move examples to src/examples
Added LGPL text
Removed unused+incomplete src/bin/test_g12
Added headers to each C++ source file specifying the license. Most are GPL, but some are LGPL to allow use with the generated LGPL library.
test_eri.cc that accompanies generated library can non-standard-ordering libraries
Eliminated duplicate integration shell-set test: now the exported and in-place-compiled libraries use the same test.
Exported library is now fully LGPL (except tests).
Merge branch 'master' of https://github.com/evaleev/libint