#119: improve style of the new cycling modules.
#119: add Sequence base class and improve loader.py
#119: changes from results of pep8 checker
#119: fix bug caused during style fixing
update vs #119 branch
update and resolve conflicts
update following feedback in #1023
update
update fixes
Merge pull request #1023 from benfitzpatrick/119.style

119.style
Merge branch '119.iso8601-cycling' of github.com:cylc/cylc into subgraph-graphing
update for ctime name change