Do not log compilation informational messages.

IFS compilation support, SSL GSKit backend by default, TLSv1.[12] support in
  GSKit for OS400 >= V7R1, no more tabs in make scripts.

Allow repeatable file name length reduction on file names with underscore or
dash characters. This is done in order to better support libcurl's existing
source file names and allow OS/400 package to build out of the box again.

Upgrade ILE/RPG binding to 7.21.7.
Update OS400 documentation accordingly.

Adapting OS400 build scripts to new features: new curlbuild.h file and soname in VERSION --> VERSIONINFO

_ Updated packages/OS400/curl.inc.in with new definitions.
_ New connect/bind/sendto/recvfrom wrappers to support AF_UNIX sockets.
_ Include files line length shortened below 100 chars.
_ Const parameter in lib/qssl.[ch].
_ Typos in packages/OS400/initscript.sh.

Fix qssl.c wrong error message
Upgrade OS400 wrappers and makefiles to 7.18.1

New declarations in curl.h reported to curl.inc.in.
Copyrights extended to 2008.
SONAME handling introduced in build scripts.

Port OS400 compilation scripts to >= V5R2M0