1. readxml.R
   .xml files -> .rda files

2. collectdat.R
   .rda files -> one clean data frame dat-@DATE@.rda

3. mkpp.R
   plate plots: 
   - number of cells per well
   - inh/none/act
   pres-@DATE@.rda file

4. betwell.R
   between well analysis

===============
twinpeaks:
overall distribution