Added C plugin code from plugins branch

.travis.yml

@@ -4,6 +4,7 @@ install:
     - uname -a
     - sudo apt-get update
     - sudo apt-get -y install libssl-dev libexpat1-dev libncursesw5-dev libglib2.0-dev libnotify-dev libcurl3-dev libxss-dev libotr2-dev libgpgme11-dev expect-dev tcl-dev
+    - sudo apt-get -y install autoconf-archive libtool
     - git clone git://github.com/boothj5/libmesode.git
     - cd libmesode
     - mkdir m4
@@ -33,4 +34,4 @@ install:
     - cd ..
     - rm -rf stabber
     - ./bootstrap.sh
-script: ./configure && make && make check
+script: ./configure --enable-c-plugins && make && make check