avoid var sized automatic variable in le_handle_advertisement_report

reserve buffer in front of incoming hci_packet buffer for h4 (posix, dma, dma+ehcill) and h2 libusb, and acl recombination buffer

define HCI_INCOMING_PRE_BUFFER_SIZE and reserve space in posix libusb and h4 transport

provide additional extra byte before outgoing HCI packet buffer

avoid /** comments, clean up block comments

don't typedef enum for bit flags

le central handle connection update params

cap le acl buffer size, added hci function

implemented L2CAP packet framgentation (in hci.c)

correct prototypes

added gap_update_connection_parameters

added hci_read_rssi command

emit dedicated bonding complete after HCI connection is closed, fixed issue #412

keep track of Classic and LE ACL slots seperately

replace hci_number_free_acl_slots with hci_number_free_acl_slots_for_handle

provide new hci_can_send_TYPE_packet_now functions

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

track opcode during HCI initialization

disconnect all connections when last client disconnects from daemon

added gap_le_set_scan_parameters to daemon

added le_central_set_scan_parameters

set le scan parameters from hci_stack

renamed ocf tag

assert le connection on le_connect, implement le_central_connect_cancel

prepare gap_le_connect_cancel command