Expand javadocs for all 3 command pre-processing events
Compliant formatting:

 - no closing of <li> tags
 - only exact tokens in <code> tags, not placeholders
Possibly get the list formatting right (PCPE only), fix linewrap in Prgh 2
Same changes to ServerCommandEvent, and remove example for cond. blocking (any ideas of a better example?)
Merge #38

Thanks @riking

commit 6e873cd03036188d5afc387ab3c71c4fb28b835d
Author: riking
Date:   2013-09-18 14:18:26 -0700

Same changes to ServerCommandEvent, and remove example for cond. blocking (any ideas of a better example?)

commit 6fe8a4dfb720e6a8979c7721736058cdb0779113
Author: riking
Date:   2013-09-18 14:14:54 -0700

Possibly get the list formatting right (PCPE only), fix linewrap in Prgh 2

commit fb1c054e011a23c9972a419ffe2d028112e1c54c
Author: riking
Date:   2013-09-01 16:11:59 -0700

Compliant formatting:

 - no closing of <li> tags
 - only exact tokens in <code> tags, not placeholders

commit 83e86261c880cb6f93b0360873d0533e103ba299
Author: riking
Date:   2013-09-01 11:15:27 -0700

Expand javadocs for all 3 command pre-processing events