add the seqan headers
Fix mismatched include guards, remove deprecated register specification, switch from unnamed to named POSIX semaphore, as unnamed semaphores are deprecated and unsupported on OS X
Add necessary semaphore/fcntl includes to system_sema.h.  Add c++98/c++11 checking to auto/unique ptrs in gff_stream.h
first pass seqan impl
streaming of plain and gzipped FAST[AQ]
restore header order
don't mmap plain FAST[AQ] files
remove extra line from ChangeLog
typo
restore header orde
remove dropped reads known issue
switch to spinlocks
try direct clearing of the lock
Merge pull request #642 from ged-lab/test/simplify

first pass seqan impl