gnu: Fetch several Git sources over HTTPS.

* gnu/packages/admin.scm (interrobang)[source]: Use HTTPS URL.
* gnu/packages/audio.scm (ardour)[source]: Likewise.
* gnu/packages/embedded.scm (libjaylink, openocd)[source]: Likewise.
* gnu/packages/gnome.scm (byzanz)[source]: Likewise.
* gnu/packages/gnunet.scm (guile-gnunet)[source]Likewise.
* gnu/packages/java.scm (classpath)[source]: Likewise.
* gnu/packages/microcom.scm (microcom)[source]: Likewise.
* gnu/packages/python.scm (python-axolotl-curve25519)[source]: Likewise.
* gnu/packages/rdesktop.scm (freerdp)[source]: Likewise.
* gnu/packages/shells.scm (rc)[source]: Likewise.
* gnu/packages/web.scm (libwebsockets)[source]: Use new source URL.

gnu/packages/embedded.scm

@@ -299,7 +299,7 @@ languages are C and C++.")
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
-                      (url "git://git.zapb.de/libjaylink.git")
+                      (url "https://git.zapb.de/libjaylink.git")
                       (commit commit)))
                 (file-name (string-append name "-" version "-checkout"))
                 (sha256
@@ -365,7 +365,7 @@ language.")
       (source (origin
                 (method git-fetch)
                 (uri (git-reference
-                      (url "git://git.code.sf.net/p/openocd/code.git")
+                      (url "https://git.code.sf.net/p/openocd/code.git")
                       (commit commit)))
                 (sha256
                  (base32