Update changelog for 2.0.0-2 release

debian/changelog

+log4shib (2.0.0-2) unstable; urgency=medium
+
+  * [0757f12] Switch to watching bzip2 compressed tarballs
+  * [67ed4d0] Add build system patches for better FLAGS handling
+  * [c9beebe] Stop fiddling with configure switches
+    --enable-debug has nothing to do with the optimization level,
+    and --disable-static is the default with our latest patches.
+  * [ce131c8] Update Standards-Version to 4.2.1 (no changes required)
+  * Upload to unstable
+
+ -- Ferenc Wágner <wferi@debian.org>  Sat, 24 Nov 2018 16:10:58 +0100
+
 log4shib (2.0.0-1) experimental; urgency=medium
 
   * [338086a] Use the 'replace' merge mode.