This reverts commit 1e8e0da3eb475bb8b78baa54cb0c34b913c2dc5d.

I don't want this going into a release without further review, as well
as documentation and tests, so I'm reverting it (at least temporarily).

See emails on kde-commits mailing list for further rationale.

CCMAIL: notmart@gmail.com

This technically works and is practiced, e.g. for some Breeze icons.

Some SVG icons do not scale well down from 32 to 22 or up from 16 to 22.
For such cases icons are typically specially crafted for 22 and 16, at least.
Then there's no single icon that be marked as "sc".

So warnings such as:

CMake Warning at ..../ECMInstallIcons.cmake:272 (message):
  Fixed-size icon foo.svg is not PNG or MNG

... are misleading.

This change adds SVG(Z) extensions to the list of allowed icons for specific sizes.

REVIEW:126199

Because the old implementation (accidentally) worked when you put the
ecm_create_qm_loader call in a different CMakeLists.txt file to the
target the file was added to, some projects did this.

This won't work with build-time-generated files, though, like moc files.
So we (ab)use QTimer events to make the loading happen on the main
thread.

BUG: 346188
REVIEW: 126000

templates are very useful as teaching tool in order to make
a minimal application that uses a certain framework.
templates in the KAppTemplate repository will always get forgotten
(plus kapptemplate is not really necessary as they work in kdevelop as well)
An ideal situation would be frameworks having templates in their own repos
with templates of barebone apps using the main framework features.
In order to do that, the cmake stuff needed in order to correctly install
a template needs to be ported to a place avaiable to all frameworks

REVIEW:126185

It should now be easier to read, and more featureful. Among other
tweaks, we now print a summary of dependencies and build options, and
the documentation is generated with more sensible breadcrumbs and
builds properly with Sphinx 1.3.

REVIEW: 126075

REVIEW: 126090

The XINPUT library is unlikely to be available on many systems,
including a lot of Linux distributions. This will warn developers in
advance by (a) not searching for XINPUT unless it was explicitly
requested, and (b) printing a warning if they do request it.

REVIEW: 125935

Makes sure there isn't old stuff still there, it didn't save much time to
keep the files around anyway.