Add latest re2c to build & test matrix [skip appveyor]

Author: sergeyklay

.travis.yml

@@ -23,13 +23,13 @@ addons:
 
 env:
   global:
-    - MAKEJOBS="-j$(getconf _NPROCESSORS_ONLN)"
+    - MAKEFLAGS="-j$(getconf _NPROCESSORS_ONLN)"
     - ZEND_DONT_UNLOAD_MODULES=1
     - USE_ZEND_ALLOC=0
     - TRAVIS_COMMIT_LOG=`git log --format=fuller -2`
   matrix:
     - RE2C_VERSION="0.13.6"
-    - RE2C_VERSION="1.1.1"
+    - RE2C_VERSION="1.2.1"
 
 matrix:
   fast_finish: true
@@ -55,7 +55,7 @@ install:
       --enable-zephir-parser \
       --enable-zephir-parser-debug \
       --enable-coverage
-  - make $MAKEJOBS
+  - make
 
 before_script:
   - make coverage-initial