Release 0.6.13

- Fix client hangs possible on OSD restarts (bug affected versions from 0.5.11)
- Fix "Assertion `sqe != NULL' failed" io_uring-related crashes possible
  on some kernels (0.6.11 increased probability of this bug)
- Fix timeout=0 in NBD proxy
- Fix build under centos 7

rpm/vitastor-el7.Dockerfile

@@ -34,7 +34,7 @@ ADD . /root/vitastor
 RUN set -e; \
     cd /root/vitastor/rpm; \
     sh build-tarball.sh; \
-    cp /root/vitastor-0.6.12.el7.tar.gz ~/rpmbuild/SOURCES; \
+    cp /root/vitastor-0.6.13.el7.tar.gz ~/rpmbuild/SOURCES; \
     cp vitastor-el7.spec ~/rpmbuild/SPECS/vitastor.spec; \
     cd ~/rpmbuild/SPECS/; \
     rpmbuild -ba vitastor.spec; \