Fixes #63: fix_counts does not work when using primary_key
Fixes #63: fix_counts does not work when using primary_key, if counted records table uses primary_key
Fixed rspec tests: removed focus, added multilevel counter cache test
Fixed: uncomment tests
Add failing spec & fix bug of not using correct class' primary key
Version bump to 0.1.25
Updated changelog for 0.1.25
Regenerate gemspec for version 0.1.25