Merge pull request #60 from pjotrp/master

std.regex somehow publicly imports std.uni in DMD 2.064.2
bump version
unified code paths in sort tool
use system "mv" command instead of std.file.rename
better hash function for subsampling
added bash completion script
[sort] correct compression level when only 1 chunk
[view] removed --unmapped option, use region '*'
smarter bash completion
ditto
updated BioD
Mac OS X build on Travis CI, attempt #1
fix #62

After refactoring, TLS variable was accessed from multiple threads =\
added a test
permissions
bump version
use shUnit2 for running tests
fixed test runner
tar on travis doesn't support --overwrite option
fix #64 - reduced GC allocations to a minimum