added -M option to put in N records for filtered out reads, changed -n to truncate at Ns rather than discard, lots of code refactoring, changed sickle xml for -M option
fixed bug in selecting datatype
updated version
rearranged the README text a bit
added help text to XML file
made help text more precise
fixed bug in interleaved output
changed truncate long option name
fixed bug where disabling 5-prime trimming discarded all reads
Merge pull request #7 from najoshi/master

pull v1.33