https://bugs.webkit.org/show_bug.cgi?id=103820

Patch by Laszlo Gombos <l.gombos@samsung.com> on 2012-12-03
Reviewed by Gyuyoung Kim.

.:

To create a WebKit2-only build for EFL use the following command:
build-webkit --efl --cmakeargs="-DENABLE_WEBKIT=OFF".

* CMakeLists.txt: Turn on WebKit1 support if it is not explicitly set (enabled or disabled) for
all CMake based ports.

* Source/cmake/OptionsEfl.cmake: Enable WebKit2
for the EFL port if it is not explicitly set (enabled or disabled).

Tools:

Set ENABLE_WEBKIT2 to OFF if build-webkit was run with --no-webkit2.
Never set ENABLE_WEBKIT in build-webkit. This will simplyfy invoking
cmake directly. Initialize $cmakeArgs to avoid potential
warnings when running the script.

* Scripts/build-webkit:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@136398 268f45cc-cd09-0410-ab3c-d52691b4dbfc