lotus/utils — pull request #49 by jodosha (2014-12-31 15:43:44+00:00)
Title: Raise an error if try to coerce non numeric strings into numeric type

This fix regards `Integer`, `Float` & `BigDecimal` coercers.

Use case:

```ruby
require 'lotus/utils/kernel'

# before
Lotus::Utils::Kernel.Integer('hello') # => 0

# after
Lotus::Utils::Kernel.Integer('hello') # => raise TypeError
```