rename plf HINTS and regenerate READMEs

parallel-letter-frequency: Rename hints file to match convention

etl: add version file #1156

Updated test for sum of multiplies #1253

Added version file for proverb #1130

sum-of-multiples: updated the version #1131

gigasecond: Version file updated for #1125

update READMEs

* version 1.3.0 added to nucleotide-count

* tests added

* removed duplicate

* added exception throwing statement

* refactored to fit the canonical data

* Tests made more thorough

* Updated to throw Illegal ArguementException

* Remove unnecessary Tests

* Remove @Ignore

* Braces added

* Shifted checking to constructor

Version 2.1.0 added to food-chain #1153

Remove two-fer test

* Create Version File for Twelve-Days Challenge

Takes care of part of #1135

* Update TwelveDays.java

Checked and revised code up to the comment. Will finish the rest soon.

* Update TwelveDaysTest.java

Closes #1135

Quick question: Why add two new lines after each verse in the methods testing for multiple verses?

* Update TwelveDaysTest.java

Fixing based on reviews

* Update TwelveDaysTest.java

Fixed error

* Update TwelveDays.java

* Update TwelveDaysTest.java

Sieve Update

1.0.0

Details at #1134

largest-series-product: update tests to version 1.1.0

hello-world: added version file

allergies: added hints about no starter implementation

pascals-triangle: added hints about no starter implementation

bob: added hints about no starter implementation

bracket-push: added hints about no starter implementation

series: added hints about no starter implementation

atbash-cipher: added hints about no starter implementation

Added version file to hello-world exercise. Fixes #1120

Added a hints.md file to the atbash-cipher exercise and generated
the README.md file again using configlet. Fixes #1098

Added a hints.md file to the series exercise and generated
the README.md file again using configlet. Fixes #1096

Added a hints.md file to the bracket-push exercise and generated
the README.md file again using configlet. Fixes #1095

Added a hints.md file to the bob exercise and generated
the README.md file again using configlet. Fixes #1093

Added a hints.md file to the pascals-triangle exercise and generated
the README.md file again using configlet. Fixes #1094

Added a hints.md file to the allergies exercise and generated
the README.md file again using configlet. Fixes #1092

space-age: update tests to version 1.1.0

Anagram: Update tests and version

run-length-encoding: added hints about no starter implementation

robot-name: added hints about no starter implementation

prime-factors: added hints about no starter implementation

* Updating Robot-Simulator Tests (New PR)

Old PR contained irrelevant commits.

Updated robot-simulator tests. 
Closes #1157

* Update RobotTest.java

Fixed duplicate method names causing compilation error and fixed checks. I'll keep in mind to add comments here instead of in the code.

* Update RobotTest.java

Fixed missing variables

* Update RobotTest.java

Clean up formatting

* Update RobotTest.java

Fixing new robot declaration parameters

Added new hints.md file copied from exercises/flatten-array/.meta/hints.md
and regenerated the README.md file using configlet. Fixes #1091

Added new hints.md file copied from exercises/flatten-array/.meta/hints.md
and regenerated the README.md file using configlet. Fixes #1090