Debian: Updates from the 0.9.24 release, including patch refresh, not checked in at the time.

Cherry-picked out of
https://launchpad.net/~i2p.packages/+archive/ubuntu/i2p/+files/i2p_0.9.24-1ubuntu1.debian.tar.xz
The files in http://deb.i2p2.no/pool/main/i/i2p/i2p_0.9.24-1~deb8u+1.debian.tar.xz
are somewhat different.
Note that some files out of that tarball are apparently older than what is in our debian/
directory and were not copied over.
Some of the changes may be for Ubuntu and will not work for Debian.
Kytv may have had a local debian/ directory for Ubuntu builds that was not checked in anywhere.
Untested. Another patch refresh for 0.9.25 may be required.
To be fixed up after the 0.9.25 release.

debian/patches/0002-jbigi-soname.patch

@@ -6,12 +6,14 @@ The purpose of this patch is to change the path that build_jbigi.sh
 expects to find the source files at. At the same time I'm specifying
 a soname to shut lintian up.
 ---
- core/c/jbigi/build_jbigi.sh |    4 ++--
+ core/c/jbigi/build_jbigi.sh | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)
 
+diff --git a/core/c/jbigi/build_jbigi.sh b/core/c/jbigi/build_jbigi.sh
+index 1521392..6a89c92 100755
 --- a/core/c/jbigi/build_jbigi.sh
 +++ b/core/c/jbigi/build_jbigi.sh
-@@ -39,7 +39,7 @@
+@@ -39,7 +39,7 @@ SunOS*|OpenBSD*|NetBSD*|*FreeBSD*|Linux*)
              UNIXTYPE="linux"
          fi
          COMPILEFLAGS="-fPIC -Wall $CFLAGS"
@@ -20,7 +22,7 @@ a soname to shut lintian up.
          LINKFLAGS="-shared -Wl,-soname,libjbigi.so"
          LIBFILE="libjbigi.so";;
  *)
-@@ -58,7 +58,7 @@
+@@ -58,7 +58,7 @@ fi
  
  echo "Compiling C code..."
  rm -f jbigi.o $LIBFILE