Update versions
Add NotNull to SpeechManager
Use the SpeechManager to get the SpeechHander
Also add NotNull attributes.
Check return value for null
Switch to automatic NuGet package restore
More CanBeNull annotations
Fix some issues
Fix possible NRE
Use an IObservable
Allow a null search path
Add support for custom commandline options
Don't serialize this field
Fix the unintended exception throwing
Use a better default height Value
Also handle null TCs.
Use a better timer frequency
Handle errors while extracting SDL libraries
Fix mod dependency handling