Tags: erlerobot/rclcpp

Remove fixed guard conditions, add notify guard conditions

* No more fixed guard conditions.

* Add notify guard condition to nodes

Remove fixed guard conditions, add notify guard conditions

* No more fixed guard conditions.

* Add notify guard condition to nodes

Merge pull request ros2#193 from ros2/issue_192

potential fix for issue 192

Merge pull request ros2#182 from ros2/rate_tests

Add unit tests for rclcpp Rate objects

Merge pull request ros2#144 from ros2/fix_sleep_for_windows

account for spurious wake ups from std::condition_variable::wait_for

Merge pull request ros2#100 from ros2/remove_reference_for_smart_pointer

remove references on smart pointers