model+apps+utils+examples+ci+docs: Update code for changes in ns-2.23

- Replace removed RandomVariable with RandomVariableStream
- Replace deprecated usages of AddTraceSource
- Update changed LogComponent interface

ci: This commit also integrates a script for Jenkins and Travis CI to
clone NS-3 and pybindgen repositories, so the code can be built.

docs: Update to reflect new home of ndnSIM and related sources

Change-Id: Ic14e1269bf15366b0041fd670c577053b6704dc7
Refs: #3122, #3123
diff --git a/.jenkins.d/00-prepare.sh b/.jenkins.d/00-prepare.sh
new file mode 100755
index 0000000..67e579f
--- /dev/null
+++ b/.jenkins.d/00-prepare.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -e
+set -x
+
+git rm -qrf .
+git clone --depth=1 https://github.com/named-data-ndnSIM/ns-3-dev ns-3
+git clone --depth=1 https://github.com/named-data-ndnSIM/pybindgen.git pybindgen
+mkdir -p ns-3/src/ndnSIM
+mv .git ns-3/src/ndnSIM/
+(cd ns-3/src/ndnSIM/ && git reset -q && git checkout . && git submodule update --init)
+
+mv ns-3/src/ndnSIM/.jenkins.d . # move CI scripts back, so the rest of them can be executed