Update scheduler.rst
Update scheduler.rst
PEP8 branch commits. Details:

PEP8 corrections:
o line lengths (not affecting readability);
o format strings;
o unused variables;
o unused imports (chimera.core.logs...);
o Scheduler modules untouched;
o typos! ("import SocketSever", "telescoope",...)
o some deprecations (Dict.has_keys(), class comparisons "is" repl. ==)
Merge pull request #16 from nsaavedra-naircl/PEP8

PEP8 branch commits.
Python’s dict.has_key is deprecated.
Merge pull request #17 from wschoenell/has_dict

Python’s dict.has_key is deprecated.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	setup.py
	src/chimera/controllers/webadmin/webadmin.py
	src/chimera/instruments/astelco.py
	src/chimera/instruments/dome.py
	src/chimera/instruments/fakedome.py
	src/chimera/instruments/optectcfs.py
	src/chimera/instruments/sbig/sbigdrv.py
	src/chimera/instruments/theskytelescope.py
	src/chimera/interfaces/dome.py
	src/chimera/util/PP_TAO/SCH.py
	src/scripts/chimera-dome
	src/scripts/chimera-ppsched
	src/scripts/chimera-tel