Check TS compilerOptions

[heavyrubberslave]

Check following compilerOptions and enable if appropriate:

{
  "strictNullChecks": true,
  "strictFunctionTypes": true,
  "strictBindCallApply": true,
  "strictPropertyInitialization": true,
  "noImplicitAny": true,
  "noImplicitThis": true,
  "alwaysStrict": true,
  "useUnknownInCatchVariables": true
}