Adding a .gitignore like the .hgignore

* Mac support (#1)

* Run CI on both linux and osx

* Introduce matrix for OSes with generic language for osx

* Matrix include does not recognize list of python versions.  Create an entry for every version

* Fix typo

* Remove empty line

* Install pyenv for osx

* Fix syntax error in the script

* Fix bash syntax error

* Remove set from the script

* Remove reference to the current directory while running install.sh

* Try v.env 2.7

* Print venv

* Install python with penv

* Fix typo in the scipt

* install mock

* Skip some tests on macOS

* Enable tests on linux to see the results

* Do not skip debian tests on mac - this is just wrong

* Fix test_dpkg_detect so it does not call apt-cache on Mac

* Fix test_AptInstalleso it does not call debian specific commands on Mac

* Fix test_rosdep_main.TestRosdepMain.test_install on Mac

* Print call_args_list for the first call in the test

* Change env. variable for python installation, make it consistent with TRAVIS

* Remove assert for the first command.  Order of parameters differs on various platforms.

* There is no version 3.4 in pyenv.  Use the latest in 3.4

* Match output with a run on Ubuntu

* Add EOL to the file

* Remove echo with python version env. variable

* Remove useless comment

* Switch Python for macOS to versions 2.7.14 and 3.6.4 to be consistent with the version installed by `brew python`

* Build and test on python installed from brew (#2)

Add a new job that uses python installed from brew.

Fix rosdep for Windows