Update WPILib dependency that includes notifier fix

- Fixes #109

Author: virtuald

robotpy_ext/misc/precise_delay.py

@@ -142,6 +142,3 @@ def wait(self) -> None:
 
     def _update_alarm(self) -> None:
         hal.updateNotifierAlarm(self._notifier, self._expiry_time)
-
-# HACK: NotifierDelay is broken, use PreciseDelay for the moment
-NotifierDelay = PreciseDelay

setup.py

@@ -40,7 +40,7 @@
 with open(join(setup_dir, 'README.rst'), 'r') as readme_file:
     long_description = readme_file.read()
 
-install_requires = ['wpilib>=2018.0.0,<2019.0.0', 'pynetworktables>=2018.0.0']
+install_requires = ['wpilib>=2018.1.5,<2019.0.0', 'pynetworktables>=2018.1.0']
 
 setup(
     name='robotpy-wpilib-utilities',