Corrected interface in standardAtmosphere.h (Issue #765)

git-svn-id: file:///srv/svn/repos/tudat/trunk@557 ac7aa084-b6da-11df-bf42-7fac39f0224f
Adding core of OrbitalStateDerivativeModel (Issue #703)

git-svn-id: file:///srv/svn/repos/tudat/trunk@558 ac7aa084-b6da-11df-bf42-7fac39f0224f
Adding FindPagmo script (Issue #757)

git-svn-id: file:///srv/svn/repos/tudat/trunk@559 ac7aa084-b6da-11df-bf42-7fac39f0224f
Added several missing derived class destructors (potential memory leaks)

git-svn-id: file:///srv/svn/repos/tudat/trunk@560 ac7aa084-b6da-11df-bf42-7fac39f0224f
Add Dominic's Langrage interpolator code.
Fix various errors in Lagrange interpolator.
New PR drag branch with beta code (previous branch diverged).
Fixed error with duplicate unit tests.