extend travis config

Author: vmihdal

.travis.yml

@@ -2,8 +2,9 @@ language: node_js
 node_js:
   - "node"
   - "14"
+  - "13"
   - "12"
-  
+
 env:
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]] ; then
       CLANG_VERSION="export CC=gcc-7 && export CXX=g++-7";
@@ -12,12 +13,12 @@ env:
     else
       GCC_VERSION="export CC=gcc-7 && export CXX=g++-7";
     fi
-  
-os: 
+
+os:
   - linux
   - osx
   - windows
-  
+
 addons:
   apt:
     sources:
@@ -26,7 +27,7 @@ addons:
       - g++-7
       - libhdf5-dev
       - cmake
-      
+
 osx_image: xcode8
 
 before_install:
@@ -57,7 +58,7 @@ before_install:
       ls `pwd`/hdf5-1.12.0/dist;
       export HDF5_HOME_WIN=`pwd`/hdf5-1.12.0/dist;
     fi
-  
+
 install:
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]] ; then
       echo ${HDF5_HOME};
@@ -75,7 +76,7 @@ before-scripte:
   - export PATH=`pwd`/node_modules/.bin:${PATH}
   - export LD_LIBRARY_PATH=`pwd`/hdf5-1.10.2/dist/lib:${LD_LIBRARY_PATH}
   - export DYLD_LIBRARY_PATH=`pwd`/hdf5-1.10.2/dist/lib:${DYLD_LIBRARY_PATH}
-  
+
 script:
   - export PATH=`pwd`/node_modules/.bin:${PATH}
   - export LD_LIBRARY_PATH=`pwd`/hdf5-1.10.2/dist/lib:${LD_LIBRARY_PATH}