add CI

.codecov.yml

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+comment: false

.travis.yml

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+## Documentation: http://docs.travis-ci.com/user/languages/julia/
+language: julia
+os:
+  - linux
+  - osx
+julia:
+  - 0.6
+  - nightly
+notifications:
+  email: false
+git:
+  depth: 99999999
+
+# uncomment the following lines to allow failures on nightly julia
+# (tests will run but not make your overall status red)
+matrix:
+ allow_failures:
+ - julia: nightly
+
+## uncomment and modify the following lines to manually install system packages
+#addons:
+#  apt: # apt-get for linux
+#    packages:
+#    - gfortran
+#before_script: # homebrew for mac
+#  - if [ $TRAVIS_OS_NAME = osx ]; then brew install gcc; fi
+
+## uncomment the following lines to override the default test script
+#script:
+#  - julia -e 'Pkg.clone(pwd()); Pkg.build("CacheServers"); Pkg.test("CacheServers"; coverage=true)'
+after_success:
+  # push coverage results to Coveralls
+  - julia -e 'cd(Pkg.dir("CacheServers")); Pkg.add("Coverage"); using Coverage; Coveralls.submit(Coveralls.process_folder())'
+  # push coverage results to Codecov
+  - julia -e 'cd(Pkg.dir("CacheServers")); Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'
+  # add Documenter
+  - julia -e 'using Compat.Pkg; Pkg.add("Documenter")'
+  # push documents to gh-pages
+  - julia -e 'using Compat.Pkg; cd(Pkg.dir("CacheServers")); include(joinpath("docs", "make.jl"))'