Add benchmark to scrabble-score exercise
Merge pull request #16 from sjakobi/benchmark-scrabble-score

Add benchmark to scrabble-score exercise
Delete accumulate problem. Fixes #18.

For now I'm leaving the actual files in place, but they will only be
served to someone who is using the `exercism restore` command.

Once I verify that the `restore` command will work even if completed
exercises are missing, I'll delete the problem files as well.
Improve roman-numeral problem per @bmatsuo's feedback.
Configure travis to use multiple threads
new exercise: paasio
paasio: move interfaces into a separate file
Merge pull request #22 from bmatsuo/paasio

new exercise: paasio
Fix nomenclature per recent discussions
Introduce proper config file
Delete outdated text config
Add ignore property to config
Add deprecated section to config
Add deprecated section to config
Make hexadecimal problem more idiomatic
Merge pull request #24 from JohnGB/hex
fix #31 - missing test case
Merge pull request #32 from JohnGB/imp-phone-numbers

fix #31 - missing test case
Move paasio readme into metadata repo
improve test and example for Grains

modify grains test to not expect a specific error

clean up stray comment

add test for 0 case
corrected a missing output error message in a test