Prepare .travis.yml for next release

This installs all needed dependencies for the next release. Hopefully we
will just have to update the subproject commit then.

Signed-off-by: Uli Schlachter <psychon@znc.in>

.travis.yml

@@ -1,3 +1,4 @@
+dist: trusty
 branches:
   only:
     - master
@@ -23,9 +24,16 @@ addons:
       - libxcb-icccm4-dev
       - libxdg-basedir-dev
       - libstartup-notification0-dev
+      - libxcb-xkb-dev
+      - libxkbcommon-dev
+      - libxkbcommon-x11-dev
+      - lua-lgi
+      - gir1.2-pango-1.0
         # Dependencies for xcb-util-cursor
       - libxcb-render-util0-dev
       - libxcb-image0-dev
+        # Dependencies for xcb-util-xrm
+      - xutils-dev
 
 # Clone the awesomeWM.github.io repo before building, because we need the
 # working copy to be there for updating already.
@@ -55,6 +63,9 @@ install:
   - travis_retry wget --no-check-certificate https://xcb.freedesktop.org/dist/xcb-util-cursor-0.1.3.tar.bz2 -O /tmp/util-cursor.tar.bz2
   - (cd /tmp && tar -xvjf util-cursor.tar.bz2 && cd xcb-util-cursor* && ./configure --prefix=$HOME/install && make && make install)
 
+    # xcb-util-xrm is not available in Ubuntu Ancient
+  - (cd /tmp && git clone --recursive https://github.com/Airblader/xcb-util-xrm.git && cd xcb-util-xrm && ./autogen.sh --prefix=$HOME/install && make && make install)
+
     # ldoc is not available in Ubuntu Ancient
   - travis_retry luarocks --local install ldoc
   - luarocks path --bin