travis: display cmake version, "make check" verbose

.travis.yml

@@ -15,6 +15,7 @@ env:
     - TRAVIS_BUILD_TYPE=Release  TRAVIS_SHARED_LIBS=OFF  TRAVIS_STRICT_C90=OFF  TRAVIS_MAKE_CHECK=OFF
 
 script:
+  - cmake --version
   - mkdir build && cd build
   - cmake .. -G "Unix Makefiles" 
              -DCMAKE_DEBUG_POSTFIX=_d 
@@ -25,7 +26,7 @@ script:
              -DCMAKE_INSTALL_PREFIX=../install
   - make -j4
   -  if [ "${TRAVIS_MAKE_CHECK}" = "ON" ]; then
-         make check;
+         make VERBOSE=1 check;
      fi
   - make install