- use incremental BAM header parsing for marking duplicates
- check sort order of input in bammarkduplicates2
set expunge position for finish methods
remove debugging message
add handling for pairs matching in name but not coordinates
update documentation for bammarkduplicates2
bump libmaus dependency
bump version after using incremental BAM header parser in libmaus
bump libmaus dependency
fix program id in bammarkduplicates2
add bamcat, bammerge and bamsplit tools
add manual pages for bamcat, bammerge and bamsplit
add supplementary alignment flag
bump version after

  * add bamcat, bammerge and bamsplit
  * add supplementary alignment flag
add multiple input functionality for bammarkduplicates
add supplementary alignment flag in bammaskflags
add bamsplitdiv tool
fix bug in bammarkduplicates leading to overwriting results
add bamchecksort program
add bamsplitdiv and bamchecksort to installed programs
add multiple input code for bammarkduplicates2