refactoring
add PlainOrGzipStream class (input stream for plain or gzipped input, detection based on first two bytes of stream)
bump version after adding PlainOrGzipStream class
fix chunk merging
bump version after fixing chunk merging for range restricted bam decoding
fixes for compiling on FreeBSD
add getErrorRate method
add shallowMerge method for FastInterval
bump version after

- fixing compilation on freebsd
- adding getErrorRate method in local edit distance result
- adding shallowMerge method in FastInterval