Added num* methods to limit the amount of data that is introspected

numProperties
numStackFrames
numLocals
numStaticProperties
numStaticVariables
numGlobalVariables
numArguments
numEntries
Added ability to limit number variables/properties/stack frames/array entries etc
Removed hashbang because it was causing an error when served as a web page
Refactored limiting. Enabled HTML UI to show number of missing properties/variables/etc.
Work on limiting.
Changed array format to directly map to JavaScript object (instead of translating into a different JavaScript object)
Work on creating direct relationship between PHP classes and JSON structure
Fixed handling of "null" on JavaScript side