Rename the cmQtAutomoc class to cmQtAutoGenerators.

It will be extended to process .ui and .qrc files too.
Rename the cmQtAutoGenerator instances to reflect coming features.
Rename the cmake_automoc command to cmake_autogen.

There is no need for a "cmake_automoc" backward compatibility command
because it is internal, undocumented, and only executed from a matching
version of cmake.
Move variable set to where it is used.
Rename local variable to reflect generic use.
Rename method to reflect generic use.
Rename some variables to reflect broader scope.
Add the AUTOGEN_TARGETS_FOLDER and obsolete AUTOMOC_TARGETS_FOLDER.
Move some makefile definitions up away from moc-specific code.
Rename the AutomocInfo.cmake file to be more generic.
Extract an SetupAutoMocTarget method.

This class will soon gain methods for autouic and autorcc.
Rename RunAutomoc to RunAutogen.

It will soon be used to process ui and rcc files too.
Update output messages for generic use.
Add extra checks for the AUTOMOC target property.

In an upcoming commit, this class will be used even if it is not set.
Rename the QtAutomoc tests to QtAutogen.
Run the main executable created in the autogen tests.

Don't try to show the windows, which would require a gui capable test
machine, and that's not guaranteed.
Record which files are skipped by automoc.

They may not be skipped by autouic.
Add automatic uic invocation for Qt.

The source files are already processed by cmQtAutomoc to look for
moc includes, so extend that to also look for ui_ includes and
find corresponding .ui files to process.

This replaces the need to invoke qt4_wrap_ui().

As the ui files are not likely to be part of the SOURCES of the
target, store the options associated with them separately in the
cmMakefile for querying during the autogen run.
Add automatic rcc invocation for Qt.

This replaces the need to invoke qt4_add_resources by allowing
adding the source .qrc file directly to the target sources.
Merge topic 'Qt-auto-generators' into next

309b9a8 Add automatic rcc invocation for Qt.
0a49395 Add automatic uic invocation for Qt.
0cec622 Record which files are skipped by automoc.
d836d27 Run the main executable created in the autogen tests.
1e01d30 Rename the QtAutomoc tests to QtAutogen.
671f2a4 Add extra checks for the AUTOMOC target property.
79a9cd4 Update output messages for generic use.
48f82f7 Rename RunAutomoc to RunAutogen.
b0fd78d Extract an SetupAutoMocTarget method.
98c741e Rename the AutomocInfo.cmake file to be more generic.
fd3d683 Move some makefile definitions up away from moc-specific code.
a44b51e Add the AUTOGEN_TARGETS_FOLDER and obsolete AUTOMOC_TARGETS_FOLDER.
18d84cf Rename some variables to reflect broader scope.
c329684 Rename method to reflect generic use.
fda05c8 Rename local variable to reflect generic use.
1e7e04f Move variable set to where it is used.
...