Missed commit in order to fix compilation using '--enable-fatal' and '--disable-depre...

Missed commit in order to fix compilation using '--enable-fatal' and '--disable-deprecated' (see previous commit)

* tests/check-hildon-banner.c
* tests/check_text.c
* tests/test_suites.h
Protect hildon-banner tests with #ifndef HILDON_DISABLE_DEPRECATED, as
were testing deprecated functions.
* examples/hildon-banner-example.c: typo on button3 type, that causes
a fail compiling with --with-examples but without --disable-deprecated

Missed commit in order to fix compilation using '--enable-fatal' and
'--disable-deprecated' (see previous commit)