bump version after the following:

  * add simplified thread pool
  * add posix spin lock class
  * refactor parallel stable sorting for use in thread pools
  * add zlib compressor/decompressor objects for simple compressed i/o
  * extend search options in BidirectionalDnaIndexTemplate
  * add block wise compressed file input for use in thread pools
  * do not use O_NOATIME by default when opening files based on posix api
  * add parallel bam sorting test program