Refactor attach and detach to remove 'Interrupt'

Having the class functions share the name of the global function was good for intuitiveness, but causes issues on platforms that implement the global 'attachInterrupt' as something other than a function (see #27).

Removing 'Interrupt' from the name also makes these functions match their counterparts in the Servo library.

src/ServoInput.h

@@ -96,14 +96,14 @@ class ServoInputPin : public ServoInputSignal {
 			ServoInputPin<Pin>::PortRegister = SERVOINPUT_PIN_TO_BASEREG(Pin);
 		#endif
 		pinMode(Pin, INPUT_PULLUP);
-		attachInterrupt();
+		attach();
 	}
 
 	ServoInputPin(uint16_t pMin, uint16_t pMax) : ServoInputPin() {
 		ServoInputSignal::setRange(pMin, pMax);
 	}
 
-	void attachInterrupt() {
+	void attach() {
 		#if !defined(SERVOINPUT_NO_INTERRUPTS)
 
 			// Compile-time check that the selected pin supports interrupts
@@ -116,7 +116,7 @@ class ServoInputPin : public ServoInputSignal {
 
 				// Interrupt attachment, platform support
 				if (digitalPinToInterrupt(Pin) != NOT_AN_INTERRUPT) {  // if pin supports external interrupts
-					::attachInterrupt(digitalPinToInterrupt(Pin), reinterpret_cast<void(*)()>(isr), CHANGE);
+					attachInterrupt(digitalPinToInterrupt(Pin), reinterpret_cast<void(*)()>(isr), CHANGE);
 				}
 
 				// Interrupt attachment, PinChangeInterrupt
@@ -131,21 +131,21 @@ class ServoInputPin : public ServoInputSignal {
 			// because we have no way of checking whether the pin is supported
 			// in hardware vs in the library
 			#else
-				::attachInterrupt(digitalPinToInterrupt(Pin), reinterpret_cast<void(*)()>(isr), CHANGE);
+				attachInterrupt(digitalPinToInterrupt(Pin), reinterpret_cast<void(*)()>(isr), CHANGE);
 			#endif
 
 		#endif
 	}
 
-	void detachInterrupt() {
+	void detach() {
 		#if !defined(SERVOINPUT_NO_INTERRUPTS)
 
 			// Interrupt detachment, with pin checks
 			#if !defined(SERVOINPUT_DISABLE_PIN_CHECK)
 
 				// Interrupt detachment, platform support
 				if (digitalPinToInterrupt(Pin) != NOT_AN_INTERRUPT) {  // detach external interrupt
-					::detachInterrupt(digitalPinToInterrupt(Pin));
+					detachInterrupt(digitalPinToInterrupt(Pin));
 				}
 
 				// Interrupt detachment, PinChangeInterrupt
@@ -157,7 +157,7 @@ class ServoInputPin : public ServoInputSignal {
 
 			// Interrupt detachment, no pin checks
 			#else
-				::detachInterrupt(digitalPinToInterrupt(Pin));
+				detachInterrupt(digitalPinToInterrupt(Pin));
 			#endif
 		#endif
 	}