Fixed typo.
Made BasicScop take just a version number from databases.properties.
Effectively removed features, but this is MUCH simpler.
Made ScopWeight use the actual ScopCategory and official SCOP names
(e.g. cf instead of fold). Made ScopWeight handle px and sp, and updated
default scoring in scop_weights.properties.
Fixed logger being used.
Created ScopPrevalence.
1. Fixed the definition of N in the benchmarking section. 2. Changed
SCOP scoring based on ScopPrevalence results, re-ran benchmarks, and
updated in documentation.
Added citations for ASTRAL and SCOP.