Removing dynamic allocations also simplifies the test.

The test code that was #ifdef'ed in the code was converted into unit
tests in test case 1309. I also removed the #if 0'ed code from splay.c

With "@unittest: [num]" in the header comment for each tested function.
Shows we have a log way to go still...

This is a few first rather basic tests of curl_formadd() and
curl_formget(). Should serve as building blocks to add more variations
to the test.

When closing a connection, the speedchecker's timestamp is now deleted
so that it cannot accidentally be used by a fresh connection on the same
handle when examining the transfer speed.

Bug: https://bugzilla.redhat.com/679709

When a time condition isn't met, so that no body is delivered to the
application even though a 2xx response is being read from the server, we
must close the connection to avoid a re-use of the connection to be
completely tricked.

Added test 1128 to verify.

Typecasts added since I changed more code to use long for timeouts

It was mostly typecasted to int all over the code so switching to long
instead all over should be a net gain.

cross-compilation of unit tests static library/programs fails when
libcurl shared library is also built. This might be due to a libtool or
automake issue. In this case we disable unit tests.

I removed the prefix as well accordingly.

Fix compiler warning: cast increases required alignment

Due to some flaw in roffit I removed some style changes to make the web
page look better.

Bug: http://curl.haxx.se/bug/view.cgi?id=3307835

Currently, Windows cross-compiled autobuilds require inclusion of setup.h
before curl.h to get definitions of CURL_STATICLIB and BUILDING_LIBCURL.