* update version file to 1.1.0

* add test to verify no rectangle when there are no rows

* fix test naming to match canonical data

* correct spacing for added test

* update house version to 2.2.0

* update reference solution to reflect canonical data

* sync house tests with canonical data

* two-bucket: increase difficulty from 5 to 7

* move position of two-bucket in config.json file

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* update queen-attack tests to version 2.1.0

* remove unchecked exceptions signature

* Update version

robot-simulator version file update

* Update RobotTest.java

Have only checked against canonical data up to the commented line.

* Update RobotTest.java

Update test for bowling

protein-translation: update unlocked by

Update version for clock Challenge

It was previously unlocked by rna-transcription which is not a core exercise.
Exercises must be unlocked by core exercises.

Update version for markdown Challenge

Update crypto-square version File

* Update tests to match canonical data version 1.3.0

* Update version file (1.0.0 -> 1.3.0)

Update version for isogram Exercise

* go-counting: add new exercise

* go-counting: add new exercise

* go-counting: add new exercise

* go-counting: add new exercise

* go-counting: add exercise

* go-counting: add new exercise

Alphametics: Update and Move version File

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