add new option to bamCoverage
rename PE_fragment_size to bamPEFragmentSize
rename PE_fragment_size to bamPEFragmentSize
add bamPEFragmentSize wrapper
improved error message
addressing issue #59. Now an error message is given when few valid regions are found
rename the bin file
added CHANGES.txt file
FIX: bamCorrelate in bed mode was not always considering the whole bed region, only a one bp region.
updated version number to reflect fix update
fixed issue #62
Merge remote-tracking branch 'origin/master' into multiheatmapper