Minor code cleanup
Minor code cleanup

* aliased the reload? method to reload
* added notes for further development
* renamed the variables to better match the value they represent

datamapper/dm-core,cardmagic/dm-core,ar-dm/ardm-core,engineyard/dm-core,alloy/dm-core,joevandyk/dm-core,tpitale/dm-core,tillsc/dm-core