Fix bundler deprecation warning

--HG--
branch : fix_bundler_gemfile_source_deprecation
ignore .git directory

--HG--
branch : pull_requests
merge fix_bundler_gemfile_source_deprecation

--HG--
branch : pull_requests
Merge branch 'pr' of ../nuntium.pull_requests.hg
specify newrelic_rpm (3.5.7.59)

--HG--
branch : fix_wrong_newrelic_version
merge fix_wrong_newrelic_version

--HG--
branch : pull_requests
Fix failing clickatell tests

--HG--
branch : fix_clickatell_tests
merge fix_clickatell_tests

--HG--
branch : pull_requests
Merge branch 'pr' of ../nuntium.pull_requests.hg
update source in Gemfile.lock

--HG--
branch : fix_bundler_gemfile_source_deprecation
merge with fix_bundler_gemfile_source_deprecation

--HG--
branch : pull_requests
Merge branch 'pr' of ../nuntium.pull_requests.hg