Updating towards ITK 4.6 with master on 6/20/14

Change-Id: I25a6346823a4a97214b20fa2357be6e3f5ae67a3
Update ITK superbuild to ITK 4.6 Release Candidate 1

Change-Id: I5c2fced48d5c3bf4fe10fc48d1a981ecddffbb49
Generate see also to itk doxygen for more classes

Support the optional itk_name, and filter_type json fields then fall
back to the basic name field.

Change-Id: Iba1391b6cd96d4c32bf60a0e8554118dc900cbe3
Use BigInteger for uint64 bit values for java

Change-Id: I2abe0a6ea4edd083a1c18a010aacc424a725e7af
Add support for Mask filter with VectorImages

Change-Id: If086e236ea5f0cffbba8e78ea13aff7c502afc19
Adding named input for MaskedNegated filter

Change-Id: Ia89c93fdac034bde768e21eced6c0c2025ef58bc
Merge topic 'SIMPLEITK-543_UpgradeITKTowards4.6'

f9b07ef1 Update ITK superbuild to ITK 4.6 Release Candidate 1
26714631 Updating towards ITK 4.6 with master on 6/20/14
Merge topic 'MaskFilterTypeImrovements'

be2ed432 Adding named input for MaskedNegated filter
c2b9f50a Add support for Mask filter with VectorImages
Merge topic 'FixITKDoxygenSeeLink'

778513ec Generate see also to itk doxygen for more classes
Merge topic 'FixLabelMapMaskLableTypeForJava'

a6e3e5b4 Use BigInteger for uint64 bit values for java