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/docs/source/getting-started.rst b/docs/source/getting-started.rst
index 0e15985..9a5d0aa 100644
--- a/docs/source/getting-started.rst
+++ b/docs/source/getting-started.rst
@@ -122,9 +122,9 @@
     mkdir ndnSIM
     cd ndnSIM
     git clone https://github.com/named-data/ndn-cxx.git ndn-cxx
-    git clone https://github.com/cawka/ns-3-dev-ndnSIM.git ns-3
-    git clone https://github.com/cawka/pybindgen.git pybindgen
-    git clone https://github.com/named-data/ndnSIM.git ns-3/src/ndnSIM
+    git clone https://github.com/named-data-ndnSIM/ns-3-dev.git ns-3
+    git clone https://github.com/named-data-ndnSIM/pybindgen.git pybindgen
+    git clone https://github.com/named-data-ndnSIM/ndnSIM.git ns-3/src/ndnSIM
 
 The few modification to the base NS-3 code are necessary to run ndnSIM, and the code is
 periodically synchronized with the official developer branch.  Eventually, all the changes will
@@ -254,9 +254,9 @@
 
         mkdir ndnSIM
         cd ndnSIM
-        git clone https://github.com/cawka/ns-3-dev-ndnSIM.git ns-3
-        git clone https://github.com/cawka/pybindgen.git pybindgen
-        git clone https://github.com/NDN-Routing/ndnSIM.git ns-3/src/ndnSIM
+        git clone https://github.com/named-data-ndnSIM/ns-3-dev.git ns-3
+        git clone https://github.com/named-data-ndnSIM/pybindgen.git pybindgen
+        git clone https://github.com/named-data-ndnSIM/ndnSIM.git ns-3/src/ndnSIM
 
         # Build and install NS-3 and ndnSIM
         cd ns-3
@@ -266,7 +266,7 @@
         sudo ./waf install
         cd ..
 
-        git clone https://github.com/cawka/ndnSIM-scenario-template.git scenario
+        git clone https://github.com/named-data-ndnSIM/scenario-template.git scenario
         cd scenario
         export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
         export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH