Merge pull request alibaba#834 from PeterDaveHello/travis-ci-tuning

Travis ci tuning

.travis.yml

@@ -6,18 +6,27 @@ compiler:
   - clang
 
 # The build machines are Ubuntu 12.04 x64
-before_install:
-  - sudo apt-get clean
-  - sudo apt-get update
-  - sudo apt-get install -y initscripts libc-bin libgd2-xpm-dev libgeoip-dev
-  - sudo apt-get install -y libxslt1-dev libpcre++0 libpcre++-dev
-  - sudo apt-get install -y liblua5.1-0-dev libssl-dev lua5.1 openssl passwd
-  - sudo apt-get install -y libperl-dev
+addons:
+  apt:
+    packages:
+      - initscripts
+      - libc-bin
+      - libgd2-xpm-dev
+      - libgeoip-dev
+      - libxslt1-dev
+      - libpcre++0
+      - libpcre++-dev
+      - liblua5.1-0-dev
+      - libssl-dev
+      - lua5.1
+      - openssl
+      - passwd
+      - libperl-dev
 
 # TODO: fix tests so they don't depend on /usr/local/nginx/logs/
 #       so we can run `make`, `make test`, `make install`.
 
 script:
   - ./configure --enable-mods-static=all --with-ipv6 --with-http_v2_module
-  - make
+  - make -j2
   - sudo make install