Symfony 5 and PHP 7.2

Requirements upgraded to Symfony 5 and PHP 7.2

Symfony 4

• added support for Symfony 4

Removed `final` from Editor

• removed final from Editor

Updated dependencies

• added support to Symfony 3
• added support to PHP 7
• updated to phpspec 2.4
• updated to PHPUnit 4.5
• added support to PHPUnit 5

Brace yourselves, v2 is coming

• added documentation to upgrade to 2.0
• added Text#map
• added deprecation messages

Text construction

• added an optional filename argument to Editor#save
• removed TextFactory
• removed Text#__construct
• removed LineBreak
• added Text#fromArray
• added Text#fromString
• added StringUtil#detectLineBreak

Current line number Incrementation

• added Text#decrementCurrentLineNumber
• added Text#incrementCurrentLineNumber

Exception

• added PatternNotFoundException
• added NotSupportedException
• added InvalidLineNumberException
• added InvalidArgumentException
• added IOException
• added FileNotFoundException
• added DifferentLineBreaksFoundException
• added CommandNotFoundException
• added Exception

Chicken Run

• added ContentFactory
• added LineReplaceAllCommand
• added Editor#run

Fixed Backward Compatibility Break

• fixed BC break by making command constructor arguments optional