add travis config for 2.1.x branch

.travis.yml

@@ -0,0 +1,20 @@
+language: cpp
+
+compiler:
+ - clang
+ - gcc
+
+before_install:
+ - echo 'yes' | sudo add-apt-repository ppa:mapnik/boost
+ - sudo apt-get update -qq
+ - sudo apt-get install -qq make libboost-dev libboost-filesystem-dev libboost-program-options-dev libboost-python-dev libboost-regex-dev libboost-system-dev libboost-thread-dev python-nose libicu-dev libpng-dev libjpeg-dev libtiff-dev libwebp-dev libz-dev libfreetype6-dev libxml2-dev libproj-dev libcairo-dev python-cairo-dev libsqlite3-dev postgresql-server-dev*
+
+script:
+ - ./configure CXX=${CXX} CC=${CC} DEMO=False BINDINGS='python' CAIRO=False FAST=True && JOBS=2 make
+ - make test-local
+
+notifications:
+  irc:
+    channels:
+      - "irc.freenode.org#mapnik"
+    use_notice: true