allergies: Update to canonical data

Test case - allergic to eggs in addition to other stuff is incomplete.
Add checks for shellfish and strawberries.

Remove redundant .keep file from wordcount fixes #330

acronym: update tests according to canonical data

beer-song: add more line breaks [Fix #317]

Add test case with description 'non-acronym all caps word'

beer-song: split tests per assertion [Fix #318]

pangram: test names include expected outcome[Fix #313]

pangram: implement missing test [Fix #314]

* Simplify construction logic for palindrome products

Fixes issue #283

* Refactor palindrome test comparator into a named function

Change order and names of anagram tests

* Added list-ops exercise to the Java track
* Removed NetBeans settings from the project dir
* Added collect() operation and tests

* Remove deprecated problems key

    This should have no effect on the track since the problems key is
    long-deprecated, see https://github.com/exercism/x-api/pull/137 for
    confirmation.
* Reorder exercises array to match initial difficulty rankings
* Assign integer difficulties to all ranked exercises
* Adjust difficulty rating and position of grade-school

change: add to track

hamming: make test names consistent [Fix #304]

Build jq from source.

- we need version 1.5 and can't get it from the official repo.
- includes adjusting the PATH so that our tools (like jq) get
  precedence.

Issue #306: fix spelling mistakes in test names

*Remove mention of "complete"

*Fix spelling mistake in second test

*Add throws Exception to methods that throw exceptions

Migrate to JUnit @Rule in triangle exercise [Fix #268]

Nucleotide-count: use JUnit's @Rule feature [Fix #264]

Pascals-triangle: use JUnit's @Rule feature [Fix #265]

Simple-linked-list: use JUnit's @Rule feature [Fix #267]

Nth-prime: use JUnit's @Rule feature [Fix #263]

Series: use JUnit's @Rule feature [Fix #266]

Allergies: remove redundant array creation [Fix #275]

Change @Test expected parameter to @Rule ExpectedException in hamming [Fix #262]