Add a sysstat task and library files.
Add pty=False for service commands. See http://docs.fabfile.org/en/1.7/faq.html#init-scripts-don-t-work
Add ensure_template(), which puts a file only when sha256 sums differs.
Move calc_sha256sum to common.lib.file module and modified not to use awk.
Modified sysstat task for renaming template to ensure_template.
Add ntp task.