Update comment for contact force
Parse joint dynamics properties of urdf only if they exist
Add operationalSpaceControl example
Minor code polishing
Merge pull request #257 from dartsim/operational_space_control_example

Operational space control example
[Fix #259] Make getter functions of Joint into const memeber functions
Fix SoftBodyNodeHelper::setCylinder()
Allow to parse SDF 1.5 (see: #264) and fix parsing <pose> tag
Add general soft box mesh shape
Add note on limitation of number of vertices of box mesh
- This should be fixed to allow [2 2 2]
Use dense soft box shape for softBodies app
Update changelog for DART 4.2
Update meta files for debian package
Set version to 4.2.0
Merge branch 'release-4.2'
Add cmake CXX flags for C++11 support
Don't support C++11 for Clang (see #267)
Comment out unused variable in SoftBodyNode.cpp
Not use CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT
- CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT is widely used by users. But it seems not an offical variable of cmake since is does not appear on the cmake document. The problem is this variable does not work as we expect on Windows (we use it only for Windows. I didn't test on linux yet).
Add configure file and build status badge for AppVeyor