moving material from ldsc.py to ldscore.sumstats
further progress on refactoring ldsc into sumstats
--rg / --h2 / --intercept now working again. still need to tweak new --rg in a loop stuff.
more tweaks
more tweaks
modified sumstats_to_chisq, changes to parse and sumstats to increase merge speed
--rg-list now more efficient (only compute + print the first h2 jackknife once)
added pickle support
chdtri crashes on NaN
fixed indel bug in parse
fixed an allele flipping bug in sumstats_to_chisq
print # of NA SNPs removed
no message
10x speedup to --rg
update README
updated sumsatts_to_chsiq
asdf
about to merge
Merge branch 'alleles' of https://github.com/bulik/ldsc into alleles

Conflicts:
	ldscore/sumstats.py
--overlap-annot now outputs the appropriate thing