BUG: Do not run vnl_test_na with broken libc++.

libc++ is found to be broken in vnl_test_na. Do not run the test
on this known issue to avoid dashboard clutter.

ITK-3271

Change-Id: Iace81fd6b1fae0919d5199f3d78d8ea06e48dc7b
BUG:  Need to explicitly specify spline order.

This patch addresses a couple issues:
1) The spline order needed to be explicitly specified
in the B-spline reconstruction.  Since most people use
the default spline order = 3, this won't have much of
an effect but it's a bug that needed to be fixed.
2) Since the phi lattice in the B-spline filter is
often used as an output, I formalized this by setting
it as this->GetOutput( 1 ).

I also rewrote parts of N4 to try to flush out an issue
we're having on certain linux machines which helps with
readability.

Change-Id: Ic06e6e2227e1675d08e5fb13cbacbbc208fd3600
BUG: Add GetInverse for IdentityTransform

This function is trivially implemented as an identity transform is
it's own inverse.

Change-Id: I301ca1e2b2584c0ab77c10b727eaccd4ca68a954
ENH: Adding SetIdentity method to base DisplacementField class

While missing from the Transform base class, most transform implement
a SetIdentity method. This method is useful to present a uniform
simple interface to ITK's transform class.

It set the displacement and the inverse displacement fields, if
provided, to zero vectors.

Change-Id: I2881a1c77456c985d1d4c01c10678c6ffa1fc47f
STYLE: Remove trailing whitespaces

Change-Id: I7a14f1c6dbca8a16554214f6d666362c4f64fd8d
BUG: Fix memory leak in MetaImageIO after exception

See ITK-3186

Change-Id: Ia78caea1c140c93f209b8b8505d4b75a06ed39fb
BUG: Uninitialized m_TransformDirection in ComplexToComplexFFTImageFilter.

Detected by valgrind.

Change-Id: I0506b17a392032fb80ca2e7d03f5eaa5c0a5ffac
Merge branch 'FixSSE2_release' into release

Change-Id: I62a76c1b3c9df380b8cae6ad7a61accf4707dc7c
Merge branch 'release'

Change-Id: Id092a0e700a842dd7158f832a53a82c1971b64e5
Merge topic 'AddDisplacementFieldSetIdentity'

5df4fa99 ENH: Adding SetIdentity method to base DisplacementField class
Merge topic 'AddIdentityTransformGetInverse'

7cd6c6e0 BUG: Add GetInverse for IdentityTransform
Merge topic 'ComplexToComplexUninitialized'

5d6a1e04 BUG: Uninitialized m_TransformDirection in ComplexToComplexFFTImageFilter.
Merge topic 'MiscN4Fixes'

bd22bcf2 BUG:  Need to explicitly specify spline order.
Merge topic 'FixMetaIOMemoryLeak'

1b9cd2da BUG: Fix memory leak in MetaImageIO after exception
Merge topic 'UseSystem'

98797261 STYLE: Remove trailing whitespaces
Merge topic 'VNLNaNLibCxx'

9210dc7b BUG: Do not run vnl_test_na with broken libc++.
BUG: Update VTK minimum version (for release)

If you look at the version number for VTK for the 19 april 2011,
the VTK version is set to 5.9.0, so this version number makes no sense.
I updated the version to 5.10.0, which is known to work with VTKGlue.

Bug reported by Norman K Williams on the ITK mailing list.

Change-Id: I55f13f539e9a47682f0ce5dcdb2bdd4b85f2f745
BUG: Bump GCCXML to 2014-08-06.

Better support for GCC 4.9.

Change-Id: I2563c0b78f6439ffa87d3914b0e5071ea109a5bc
Merge topic 'GCCXMLBump'

d66a3c3f BUG: Bump GCCXML to 2014-08-06.
Merge topic 'VTKMinVersion'

1daefcb9 BUG: Update VTK minimum version (for release)