Enable Asserts in travis-ci.

Author: kvap

.travis.yml

@@ -6,7 +6,7 @@ compiler:
   - gcc
   - clang
 install: cpanm IPC::Run DBD::Pg Proc::ProcessTable
-before_script: ./configure --enable-tap-tests && make -j4
+before_script: ./configure --enable-cassert --enable-tap-tests && make -j4
 env:
   #- TESTDIR=.
   #- TESTDIR=src/test/recovery