Add itk
add the Manifest file
Complete the ebuild with the Manifest file. Closes: 124241
Merge branch 'master' of github.com:gerddie/sci
fix most repoman issues
bump to latest EAPI
Add line break and herd
correct most of the issues given in the pull request
correct dash character and fftw slot
Add a pkg_pretent section to force the user to set certain variables in make.conf

Specifically, ITK_COMPUTER_MEMORY_SIZE must always be set and ITK_WRAP_DIMS must be set
when python bindings are enabled.
Further cleaup the ebuild:

  - correct indentions
  - remove patented use flag since it is an unused  leftover from the
    itk-3.X times
  - remove some out-commented lines
correct more indentions
remove obsolete check for environment variables
use cmake-utils also for itkv3compat
correct use flag help
remove superfluos line in the patch
replace eerror by elog, and correct indetion
replace maintainer line
change digests
update the dependencies and handling of missing varibles

After some more inspection of the build system it turns out that
now hdf5 is always required, so I removed the useflag and made the
dependency obligarory.

In addition, I changed the handling when the environment variables are not set
i.e. only if python bindings are requested and only for the *DIMS variable
the ebuold will bail out, for the memory size the default fallback "1" will
be used if it is not set.

I also added the sse2 use flag since VNL can profit from it.