eve-log: output cleanup

Suppress debug messages and print in a nicer way which modules are
being enabled.
eve-log: enable in default config

In the default config, eve-log is now enabled by default. All loggers
except 'drop' are enabled.
yaml: increase default memcaps

Increase default flow and stream reassembly memcaps.
yaml: comment out example config

Comment out htp settings that should only serve as an example.
Update ChangeLog for 2.0rc2 release