(CFACT-68) add solaris socket libraries to compile

Solaris requires -lsocket for programs using socket api. This patch
adds the -lsocket library if the operating system detected is SunOS
(CFACT-68) Add -Wextra only if the platform is not solaris

The gcc built on solaris complains of problems in compiling logging.cc when
-Wextra is enabled in cfacter. This seems related to https://svn.boost.org/trac/boost/ticket/8811
which complains of same errors. This patch turns off -Wextra when the OS detected is SunOS
(CFACT 68) Use struct utsname when referring to utsname

The utsname is a structure exposed in <sys/utsname.h> unfortunately, in
Solaris, there is a global variable called utsname, which makes the use of
utsname as a type illegal. This patch changes the invocation to `struct utsname`
(CFACT 68) Provide a skeletal add_platform_facts

This comes in in CFACT 70
(CFACT-81) Fix LSB major/minor release resolutions in Ubuntu

Prior to this commit, the LSB release facts were not correctly
parsing Ubuntu's release string to collect its major and minor
versions. This commit updates the LSB facts such that a release
string of '14.04.1' will return a major release of '14.04' and
a minor release of '04', if a minor version is specified.
Merge pull request #93 from whopper/release_fix_ubuntu

(CFACT-81) Fix LSB major/minor release resolutions in Ubuntu
Merge pull request #94 from vrthra/fix/cfact-68/solaris

(CFACT-68) enable solaris compilation
(CFACT-59) Add id and gid facts
Merge pull request #95 from adrienthebo/issue/master/cfact-59-id-gid-facts

(CFACT-59) Add id and gid facts
(FACT-62) Add timezone fact