[engine] Fix typo.
Merge branch 'nscc2_hades_integration' of github.com:ms705/firmament into nscc2_hades_integration
[engine] Various bits of code cleaning, and transform some prints to stdout into log messages.
Fix for cache memory segment being destructed
[storage] Merge with @nacrooks new code.
Merge branch 'master' of git://github.com/nacrooks/firmament into nscc2_hades_integration

Conflicts:
	src/engine/task_lib.cc
Add more verbose debugging and fix some object store issues.
[build] Run lint script from ext/ rather than scripts/.