Added new cmake variable SHARED_LIBRARY. By default is on.
When it is off QCA library, plugins, tools, examples and unittests
will be built as static. Also if is used static Qt plugins will be
built as static. Tested with Qt4.
show the two ways to do a basic hash. Also, an example of some of the
options for working with providers. More comments to explain everything.
This also adds copyright notices for everything, and notes on the
pre-QCA2 examples.
svn path=/trunk/kdesupport/qca/; revision=374181
