Merge pull request #80 from Am1GO/master

Migrate to new travis infrastructure and use ccache

.travis.yml

@@ -1,6 +1,18 @@
+sudo: false
 language: cpp
-before_install:
-  - "sudo apt-get update -qq"
-  - "sudo apt-get install -qq cmake libssl-dev libprotobuf-dev protobuf-compiler liblzma-dev zlib1g-dev liblzo2-dev"
-install: true
-script: mkdir objdir && cd objdir && cmake ../ && make
+cache: ccache
+addons:
+  apt:
+    packages:
+    - cmake
+    - libssl-dev
+    - libprotobuf-dev
+    - protobuf-compiler
+    - liblzma-dev
+    - zlib1g-dev
+    - liblzo2-dev
+script:
+  - mkdir objdir
+  - cd objdir
+  - cmake ../
+  - make