Update to version 5.14.9

• 5.14.9 2015/09/15

Fix segv in ZOOM_connection_fire_event_socket YAZ-858
The odr_in memory taken by handle_srw_response, and, thus if result
set is destructed before we expect the HTTP response (hres) it may
be come invalid. Therefore we inspect hres before the call to
ZOOM_handle_sru.
Fix possible deadlock in backtrace (2nd attempt) YAZ-856
An alarm is set up so that backtrace is terminated if it hangs.
Even if backtrace the handler also attempts to spawn gdb.

• 5.14.8 2015/09/14

Fix SEGV for s=sl for 3 terms and syntax error YAZ-857

• 5.14.7 2015/09/13

Fix possible deadlock in backtrace YAZ-856
Various minor text tweaks in documentation