The following changes allow for builds on AIX and HPUX
with the native (non-gcc) compilers, as well as
Visual Studio 2008 and Visual Studio 2012.
Also work around a build error with gcc on Solaris
which fails due to the system detecting an attempt
to use C99 mode with an XPG mode less than XPG6.
LZ4HC : Compression Level is now a programmable parameter (CLI from 4 to 9)
Separated IO routines from command line (lz4io.c)
Version number into lz4.h (suggested by Francesc Alted)
git-svn-id: https://lz4.googlecode.com/svn/trunk@113 650e7d94-2a16-8b24-b05c-7c0b3f6821cd