Remove boost::timer and replace with fcl::Timer (#147)
Remove boost::timer and replace with fcl::Timer (#147)

* Update test_fcl_sphere_capsule.cpp to use gtest

* Update more tests to use gtest

* Update rest of tests to use gtest

* Add missing copyright to test_fcl_simple.cpp

* Drop dependency on Boost Test

* Update changelog

* Remove Boost.Date_Time

* Revert the default value of FCL_BUILD_TESTS option

* Remove boost::timer and replace with fcl::Timer

* Bump version to 0.6.0

* Add back boost settings for filesystem and system

* Add back boost::system

* Use GTEST_TEST rather than TEST to avoid potential name conflicts

hsu/fcl,hsu/fcl,hsu/fcl