jim/carmen — pull request #152 by dedene (2014-08-09 15:03:45+00:00)
Title: Load UnicodeUtils partially to speedup gem load time

By requiring `unicode_utils/casefold` instead of `unicode_utils`, we gain around 350ms in gem load time without any loss in functionality.

Before:
```
>> puts Benchmark.measure { require 'carmen' }
0.210000 0.140000 0.350000 ( 0.352950)
```
After:
```
>> puts Benchmark.measure { require 'carmen' }
0.020000 0.000000 0.020000 ( 0.022928)
```

This also solves #141.