Merge pull request #22 from rvosa/master

various steps are now parallelized
Merge pull request #23 from rvosa/master

implemented chunking of input taxa and joined alignments
Merge pull request #24 from rvosa/master

recent changes
Merge pull request #25 from rvosa/master

added bootstrapper
removing old primate test files
changed examl invocation to use mpirun
various fixes
added option of writing out rRNA features instead