removed logger from DeaPool

Change-Id: I8e05d0a309b4fe18c2bec944b87f66855ff5d91d
removed unnecessary block when calling stage_app

Change-Id: I087976b1ab12e9b008cb61479cf7e7b3f4823bd1
remove unused directories.stacks config option

Change-Id: I42202d6f27fd2936ce0f3c6562d5db262002831b
be more explicit when testing of removal of upload handle

Change-Id: Iedb7bf2562b4c113831a16d1a48fe98f2aa5af18
use stager pool to find stagers

Change-Id: I041e557b1041459701d23434baf8e77f0605ef5b
remove inccorect usage of check_process_alive?

Change-Id: I7814f62e68d1c19c8213520935a3cf2ad0caf03a
explicitly require libraries used

Change-Id: I49b5090eb781e4ccc15b332d7c40d3b452f84cd3
move stack model configuration into config.configure

Change-Id: I3bb753346cea30df9cf4222c3eadf9a03d0e496c