Fix paths in public headers

Signed-off-by: Martin Milata <mmilata@redhat.com>
Signed-off-by: Jakub Filak <jfilak@redhat.com>
Remove sr_gdb_stacktrace_get_duplication_hash

Function sr_thread_get_duphash should be used instead.

Signed-off-by: Martin Milata <mmilata@redhat.com>
Signed-off-by: Jakub Filak <jfilak@redhat.com>
Fix sr_stacktrace_parse for core type

Changes the type of the second argument from const char** to const char*
- the pointer will not be modified now.

Signed-off-by: Martin Milata <mmilata@redhat.com>
Signed-off-by: Jakub Filak <jfilak@redhat.com>