Fix issue #224. WeatherBug - Mixed case city search corrections

Removed debug flag override; was unable to effectively set debug from .ini or web interface
Eliminated lowercase conversion of city name
Modified forecast city search API call to use lowercase
Modified forecast city match to ignore case
Added additional debug logging for forecase city match
Merge pull request #225 from mstovenour/fix_issue_224

Fix issue #224. WeatherBug - Mixed case city search corrections