Added a variadic template version of size-based Range constructor.
Workaround to allow [start,finish) constructor to not clash with the new variadic template constructor.
Cmake performs a (simple) variadic template check.
Minor fix.
Switched Range [start,finish) to use disable_if in the constructor argument (does not require C++11).
Merge pull request #5 from evaleev/master

Added a variadic template version of size-based Range constructor.