beta: send Parsoid log to shared dir

Will log to /data/project/parsoid/parsoid.log

Change-Id: I9e02b1e573c05aef1d4e170b5850b5bdd18e040c
parsoid: logrotated file is now a parameter

Use <%= @parsoid_log_file %> instead of hardcoded
/var/log/parsoid/parsoid.log

Change-Id: If6dad2fe5928c7e4c6a9e3544a25891a7fd18eae
Merge changes If6dad2fe,I9e02b1e5 into production

* changes:
  parsoid: logrotated file is now a parameter
  beta: send Parsoid log to shared dir