update README, rename library files and add software.lib

On branch master
Changes to be committed:

	modified:   README.md
	renamed:    includes/linuxkm.lib -> includes/base.lib
	renamed:    includes/gitkm.lib -> includes/git.lib
	new file:   includes/software.lib
add software.lib

	rename XYZ_VERSION to XYZ_V
	add double quotes around list arguments for function calls, otherwise on ly the first list item would be used by the function
	move software versions into software.lib
	add SW_LIST to determine which software to prompt the user to enter version

On branch master
Changes to be committed:

	modified:   config.sh
	modified:   includes/base.lib
	modified:   init.sh
	modified:   scripts/lemp.sh
	modified:   scripts/linux_update.sh
	modified:   scripts/middleman.sh
	modified:   scripts/server_ssh.sh
	modified:   setup.sh