fix warning
add test program for collating BAM decoding from multiple files
set sort order in BamMergeTemplate class according to input data
remove obsolte method
add accessor methods in PushBuffer
make attribute of BwtMergeZBlockRequestVector private
refactor BwtMergeTempFileNameSet
refactoring for BwtMerge classes
add range checking accessor method for AutoArray
refactoring in suffixsort namespace
started test for multi byte marked streams
add files to .gitignore
add experimental to tag added by bumpversion script
bump version after commit for set sort order in BamMergeTemplate class according to input data