implement acquaintance name change

Link: https://github.com/GeneAssembly/biosal/issues/138
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
add design comment in controller

Link: https://github.com/GeneAssembly/biosal/issues/133
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
add resize message to sequence store

Link: https://github.com/GeneAssembly/biosal/issues/134
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
reuse dead actors when spawning

Link: https://github.com/GeneAssembly/biosal/issues/67
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
make the input actor more robust

Link: https://github.com/GeneAssembly/biosal/issues/108
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
apparently XCode on the Mac does not have spin locks

Link: https://github.com/GeneAssembly/biosal/issues/146
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
add mutex support when spin locks are not available

Link: https://github.com/GeneAssembly/biosal/issues/146
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
add a message to push sequences

Link: https://github.com/GeneAssembly/biosal/issues/149
Link: https://github.com/GeneAssembly/biosal/issues/120
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>