Changed version number in makefile

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3577 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/Makefile

 VERSION_MAJOR = 1
-VERSION_MINOR = 7
+VERSION_MINOR = 8
 VERSION_RELEASE = 0-SVN
 VERSION = $(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_RELEASE)
 # Irrlicht Engine 1.7.0-SVN