This patch implements the following style changes:
1. The 'environment' argument is placed in the same
location for all plays, making sure it's easier
to find.
2. The play tags are located in the same place, also
making sure they're easier to find.
3. The line breaks between tasks and plays are set
to be consistently 1 between tasks and 2 between
plays.
4. Given that there are no roles being used, the use
of pre/post tasks is converted to only using tasks.
Change-Id: I2e22c8360d65256b8e44ca1e310e0668a651196d
bc2ced27c2