streamline use of hci_can_send_packet_now_using_packet_buffer instead of hci_can_send_packet_now

corrected HCI_EVENT_INQUIRY_RESULT and HCI_EVENT_INQUIRY_RESULT_WITH_RSSI handling

corrected HCI_EVENT_NUMBER_OF_COMPLETED_PACKETS handling

add missing argument

check command could be sent before creating command packet, additional error messages

replace hci_send_acl_packet(data,size) with hci_send_acl_packet_buffer(size) to document that ACL packet have to be prepared in the hci packet buffer

move set of last_cmd_opcode into send baud rate command block

prepare to move init sequence logic into hci_initializing_event_handler

also extracted hci_initializing_event_handler

extacted hci_initializing_state_machine

track opcode during HCI initialization

less hacks during boot-up

extracted hci_power_transition_to_initializing, reset reserved hci when transition to initializing

release packet buffer if ACL send fails

better debug output for le connections

reboot Bluetooth on Hardware Error

test for advertising event with multiple reports

also trigger hci_run loop on disconnect all

disconnect all connections when last client disconnects from daemon

re-enable bondable (regression from 2641)

keep discoverable/connectable as this has been requested by the client(s)

add HACK to deal with duplicate HCI Reset Complete events seen on cheapo CSR8510 A10 USB Dongle

use le connection parameters from iOS 7.0.4

added le_central_set_scan_parameters

set le scan parameters from hci_stack