init checkin of better configuration handling for hekad.  only the config file and version switches remain in the commandline options now
missed renaming the LoadHekadConfig function
Merge branch 'dev' into features/issue_57
* extended the hekad configuration parsing test to exercise all
  configurable options.
* added toml tags to the hekad configuration struct
fixed up some documentation problems with the global configuration
options for hekad
Merge pull request #304 from mozilla-services/features/issue_57

Features/issue 57