sdp client: extracted method can_send_now

git-svn-id: http://btstack.googlecode.com/svn/trunk@2925 1a0a8af8-31b5-11de-8e0c-53a27eea117e
bnep service uuid moved to pan.h file

git-svn-id: http://btstack.googlecode.com/svn/trunk@2926 1a0a8af8-31b5-11de-8e0c-53a27eea117e
extracted rfcomm_cen_send_packet_now method

git-svn-id: http://btstack.googlecode.com/svn/trunk@2927 1a0a8af8-31b5-11de-8e0c-53a27eea117e
fix compile

git-svn-id: http://btstack.googlecode.com/svn/trunk@2928 1a0a8af8-31b5-11de-8e0c-53a27eea117e
corrected rfcomm_can_send_packet_now, and used in examples

git-svn-id: http://btstack.googlecode.com/svn/trunk@2929 1a0a8af8-31b5-11de-8e0c-53a27eea117e
RFCOMM: validate packet size with MTU -> log_error

git-svn-id: http://btstack.googlecode.com/svn/trunk@2930 1a0a8af8-31b5-11de-8e0c-53a27eea117e
L2CAP: validate packet size with remote MTU -> log_error

git-svn-id: http://btstack.googlecode.com/svn/trunk@2931 1a0a8af8-31b5-11de-8e0c-53a27eea117e
only disconnect HCI connection in case of security block (fixes disconnect for non-existing service or resoucees full)

git-svn-id: http://btstack.googlecode.com/svn/trunk@2932 1a0a8af8-31b5-11de-8e0c-53a27eea117e