Version 1.5.5 (National Anthem)

Compatibility update with Bio++ 2.4.0.
Updated documentation and visualization tools.

Version 1.5.4 (No Surprises)

New minor update for the 1.5 version. Compatibility update with Bio++ 2.3.1.

Version 1.5.3 (Subterranean Homesick Alien)

v1.5.3

Fixed version number in doc and prog.