creating a custom environment to store data in
added servr, and multicore to depends list

modified run.server to use the httd server from servr, runs it in a parallel process

added stop.server to stop the server

server job is stored in custom environment samatha.data
Merge branch 'useRserve' into fixRebuild
added functionality for running and stopping `samatha` in the background in a parallel process
removed dependency on multicore, switched to using the included parallel, which will work on linux. Only do the server job in the background if on linux
had an error in accessing the sysname from Sys.info()
Merge branch 'useRserve' into fixRebuild
updated watch.site and stop.site to use functions from the included parallel package