add b8 files (version is b8-0.6)
PDO changes for b8_storage_mysql
update of comment list in admin CP to use bayesian spam filter
add statistics for news comments list
add possibility to revert comment classification
update of comment list in admin CP to allow some sort options
fix some invalid HTML sequences
add possibility to sort comments list by spam probability
Merge pull request #89 from Thoronador/feature-b8

bayesian spam evaluation for comment list in admin CP