WebHEP Core Funcionality

Functionality:

Have Analysis Configuration page:
  Select Datasets
  Configure Physics Objects (muon max eta, electron min pt, etc.)
  Configure Selection Cuts (min N muons, min MET, etc.)

Have Results Page:
  Display Stacked plots from all selected datasets
  Plot Y-axes will be cross-section/bin
  Include Legend at beginning of page

Implementation:
  Interface is pyjamas using GChart for plotting
  JSON-RPC communication
  ROOT TSelector used for analysis
    Interfaced to python function
    Configuration and Output Histos Represented in JSON
  Datasets stored in ROOT TTrees

Work items:
Configuration: DONE
Make Stack Plots Work: DONE
Multiple Plots on Same Axis w/ Different Colors: DONE
Implement Legend: DONE
Implement cross-section/bin: DONE
Test, Ensure Bug-Free & Ready for Release: TODO