- Removed class template specialization for rvalue reference by specifying storage type of container conditionally
- Added tests for checking move semantic's work
- Removed requirement of ::iterator type in container

- To prevent changing of counter, made it const in reference & value type
- Removed useless dummy_ variable because of errors while using it

- Replaced makeEnumerate w/ ctor with deduction hint
- Added size method for enumerate

- Added test with constant container
- Removed const from reference & value_type
- Removed operator!= for EnumerateIt (generated by default)
- Renamed Enumer -> Enumerate