Update version for perfect-numbers

* Add new exercise Variable Length Quantity

* Fix test file

* Get rid of unchecked/unsafe operations warning

* Fix typo in config.json

* Add List imoprt to starter solution

* Break up some tests into multiple lines

* Throw an IllegalArgumentException in error cases.

* Add more topics

* Indent multi-line arguments

* Add new exercise Error Handling

* Add requested changes

* Undo unnecessary change to ErrorHandlingTest.java

* Add requested changes

* Add requested changes

* Check exception message

* Add requested changes to ErrorHandlingTest.java

* Add hints.md

* Add requested suggestions

* Expand hints.md

* Add gramatical suggestions

updated protein-translation version to 1.1.0

word-count: update version file (1.1.0 -> 1.2.0)

flatten-array: update version file (1.1.0 -> 1.2.0)

saddle-points: update version file (1.0.0 -> 1.1.0)

nth-prime: update version file (2.0.0 -> 2.1.0)

collatz-conjecture: update version file (1.1.1 -> 1.2.0)

regenerate readme

Update atbash-cipher version to 1.1.0

* Add new exercise Diffie Hellman

* Add requested changes

* Add requested changes

* Add requested changes

rotational-cipher: Updated version file

twelve-days: Updated version file

secret-handshake: Updated version file

kindergarten-garden: Updated version file

Fixes #1272

Fixes #1271

Fixes #1270

Fixes #1265

* Updates hamming version metadata

* Updates scrabble-score version metadata

rna-transcription: update version file (1.1.0 -> 1.2.0)

update readmes

* Implement Zipper

* Update config

* Update readme

* Minor changes

* Update all methods to package private

triangle: Update version

sieve: Update version

spiral-matrix: Update Version File

* new two-bucket exercise

* new two-bucket exercise

* update two-bucket exercise

1.4.0
Updated

* updated tests

* fixed errors

* Remove Parameterized tests

* Change test names to be more reflective of test case

* Declare Octal variable for each test case

remove reference to xjava

binary: add version file

updated pascals triangle version

Update ScrabbleScoreTest

binary: removed use of parameterized tests