Merge pull request #7 from OMGsus/patch-1

legit link to wiipair
Remove some unneeded comments in HIDPad_DualShock4.cpp
Bug Fixes:
	Fix double release of GCController dpad elements.
	HIDManager_iOS connections now properly close the hid pad connection.
Fix logic error that caused a button’s pressed value to always be true.
Start adding code to close connects when app is sent to background.
Add Wii U Pro controller driver;	WiiPair-iOS can pair this using the pre-existing WiiMote pairing code but it can’t be used without a patched BTdaemon:

BTstack automatically sends hci_accept_connection_request with the role parameter set to 1 (stay slave) but the Wii U Pro controller requires role to be set to 0 (become master). With Wii Remotes it is enough to set a switch_role command right after connection, but Wii U Pro controllers won’t work this way.
Life cycle tweaks:
	When an app gains focus a BTdaemon socket is opened and an HCI_POWER_ON command is sent.
	When an app loses focus all connected devices are disconnected and the BTstack socket is closed. An HCI_POWER_OFF command is not sent, BTstack will turn itself off after a short period of inactivity.
	This results in a lot less connections issues; in testing I was able able to switch between apps a couple dozen times without problem. In the case that a problem does arise the app can be backgrounded and will have a fresh state when returning to the foreground.
Begin porting to use native iOS bluetooth stack. IOKit.framework headers and libraries are needed to build. (More details soon)
Add BTServer tweaks for device pairing (dual shock 4 only for now)
Add WiiMote pairing.
Add WiiMote/Wii U Pro controller support to iOS Native BT.
Update README
Add extended buttons to GCExtendedGamepad: Select, Start, L3 and R3. Use -respondsToSelector: to check for them.
Improve logging; enable notice level logging by default
BTServerFilter’s PacketLogger now uses a network socket rather than a file. The frequent disk writing was making me uncomfortable.
Merge pull request #2 from meancoot/native_bt

native btsync