chg: more checks for one to one correspondence of bi. factors and multi. factors
fix: need to map down co-factors
fix: need to check for divisibility
fix: wrong choice of main variable
fix: prevent factors from being reordered
Merge pull request #604 from mmklee/bug_fix

Bug fix
Merge pull request #605 from mmklee/dox

Dox
fix: %H in help.cnf
fix: typo
add: more help browsers: xxx-www-idx: use singular.idx
More doxygen docu
Extended doxygen mainpage of introduction manual + some more links
chg: more changes to docu
chg: ignore preprocessor statements and use first sentence as brief description
chg: even more changes to docu
chg: moved old/unused code into folder old
chg: added brief descriptions to some files
fix: factory's own doxygen settings
chg: disable old way to create doxygen