Sanity checks

Added sanity checks, oct and sox
Modified correlation lists
changed cor back

include all data points
Cleaned up

expr_stem to expr_quant.all, should have done this forever ago
Changed probe file

Now darrengoodprobes from minal. Looks like it's the same file as
courtney's
Probe inclusion

new test for probes detected in LCLs vs stem cells
more probe inclusion test

and added to df_all
Tweaked, cleaned up

eQTL cv section
Removed all SE function

removed standard error function and any subsequent use bc i don't use it
for the paper
Added geo instructions
removed analysis with high cv subset
cleaned up

changed a lot in last section (for paper)
Added more comments