updates travis-ci to build vere before testing arvo

.travis.yml

@@ -1,13 +1,56 @@
 language: node_js
 node_js:
 - 4
+
 before_install:
+# building vere directly in lieu of a working debian package script
+# pwd: ~/urbit/arvo
+- cd ../
+- wget https://github.com/ninja-build/ninja/releases/download/v1.8.2/ninja-linux.zip
+- unzip ninja-linux.zip
+- sudo mv ninja /usr/bin/
+
+install:
+# pwd: ~/urbit
+- pip3 install --user -I meson==0.44.1
+- git clone https://github.com/urbit/urbit
+- cd ./urbit
+# pwd: ~/urbit/urbit
+- git checkout $(cat ../arvo/.travis/pin-vere-commit.txt)
+- ./scripts/bootstrap
+- ./scripts/build
+- sudo ninja -C build install
+- cd ../arvo
+# pwd: ~/urbit/arvo
+
+before_script:
 - cd .travis
-- wget -i pin-urbit-release.url -O ./urbit.deb
-- sudo apt install ./urbit.deb
-before_script: bash get-or-build-pill.sh
+# pwd: ~/urbit/arvo/.travis
+- npm install
+- bash get-or-build-pill.sh
 # https://github.com/travis-ci/travis-ci/issues/2570
+
 before_deploy: "[ -d piers ] || { mkdir piers && tar cvzSf piers/zod-$TRAVIS_COMMIT.tgz zod/; }"
+
+addons:
+  apt:
+    packages:
+    - python3
+    - python3-pip
+    - libgmp3-dev
+    - libsigsegv-dev
+    - openssl
+    - libssl-dev
+    - libncurses5-dev
+    - automake
+    - autoconf
+    - make
+    - libtool
+    - g++
+    - re2c
+    - libcurl4-gnutls-dev
+    - unzip
+
 deploy:
   - skip_cleanup: true
     provider: gcs

.travis/pin-urbit-release.url

@@ -1 +0,0 @@
-https://github.com/urbit/urbit/releases/download/v0.5.1/urbit_0.5-1_amd64.deb

.travis/pin-vere-commit.txt

@@ -0,0 +1 @@
+ab4b327e82ff4ee21a332df8ccc426ed7c7a1897