update changelog
"1.10.16"
revert use of AI_CONFIG_IMPORT_COLLADA_IGNORE_UP_DIRECTION (fix #44)
"1.10.17"
add DEPENDS for kdl_parser
update changelog
"1.10.18"
Use #!/usr/bin/env python for systems with multiple Python versions.
Merge pull request #49 from bchretien/hydro-devel

Use #!/usr/bin/env python for systems with multiple Python versions.
fix overwriting velocity limit
Merge pull request #51 from YoheiKakiuchi/hydro-devel-fix-velocity-limit

velocity limit is overwritten (hydro)
fix test at kdl_parser
fix test at urdf
fix urdf files for test
Merge pull request #52 from YoheiKakiuchi/hydro-devel-fix-test

Fix tests on robot_model
Better feature detection for assimp version

The unified headers were introduced in Assimp 2.0.1150, so checking for Assimp 3.0.0 is not quite the best solution.

See https://github.com/assimp/assimp/commit/6fa251c2f2e7a142bb861227dce0c26362927fbc
Updated Assimp defines to be more flexible

This commit is a follow-up to 85b20197671e142044e471df603debd0faf08baf

Why was export.h removed from assimp < 3.0.0?
Invert Assimp version detect logic for greater accuracy
fix, joint axis should be rotated depend on local coords
Merge pull request #55 from YoheiKakiuchi/hydro-devel-fix-joint-axis

joint axis should be rotated depend on local coords