Delete parse_date task
Merge pull request #62 from WarKnife/parse_date

remove parse_date
fix variable names in php issues
extract variables in checker
Merge pull request #72 from vyorkin/bugfix/php-issues

fix variable names in php issues
Added anagram-finder
Added shell-words-split
Merge pull request #74 from Krotos/shell-words-split

Added shell-words-split
Merge pull request #73 from vyorkin/feature/refactoring

extract variables in checker
Merge pull request #67 from Krotos/anagram-finder

Added anagram-finder
Added find_palindrome