[ADD] eggs necessary for letsencrypt

Author: hbrunn

.travis.yml

@@ -31,6 +31,11 @@ install:
   - git clone https://github.com/OCA/maintainer-quality-tools.git ${HOME}/maintainer-quality-tools
   - export PATH=${HOME}/maintainer-quality-tools/travis:${PATH}
   - travis_install_nightly
+  - pip install python-ldap
+  - pip install unidecode
+  - pip install validate_email
+  - pip install acme_tiny
+  - pip install IPy
   - printf '[options]\n\nrunning_env = dev\n' > ${HOME}/.openerp_serverrc
   - ln -s ${TRAVIS_BUILD_DIR}/server_environment_files_sample ${TRAVIS_BUILD_DIR}/server_environment_files
 script: