Package upgrade: cmake

Alpine version: 3.3.2 (2015-09-17) since commit:8ebaf602 (2015-09-21)
Latest version: 3.4.1 (2015-12-02)

CMake 3.4 Release Notes

(from redmine: issue id 4916, created on 2015-12-03, closed on 2016-05-31)

• Changesets:
  • Revision 6e9c7624 by Timo Teräs on 2015-12-23T08:12:23Z:

main/cmake: upgrade to 3.4.0

fixes #4916