Bug fix: Formatting in list items

• Lists no longer break if a list item contains formatted text, closes #89.
• Initial support for child deltas.

With the initial work on child deltas this fix opens up additional development, for example child lists, I may also be able to remove the compound deltas, I'm not keen on the duplication of code, v3.14.0 soon.

Initial Markdown support and bug fixes

• Added video support to HTML and Markdown parsers.
• Newlines before inserts were being ignore, closes #87.
• Minor corrections to README.
• Added test coverage.

Groundwork for Markdown

• Added new Interfaces, will simplify additional of new parsers.
• Initial Markdown development, not complete, no escaping yet and not fully tested.
• Reverted requirements to 7.1, turns out there isn't currently a hard requirement for 7.2.
• General refactoring, also, improved list handling.

Groundwork for Markdown

• Added new Interfaces, will simplify additional of new parsers.
• Initial Markdown development, not complete, no escaping yet and not fully tested.
• Reverted requirements to 7.1, turns out there isn't currently a hard requirement for 7.2.
• General refactoring, also, improved list handling.

Tweaks

• load() and loadMultiple() now support method chaining, closes #72, required a minor change to thrown exceptions.
• Generated HTML now has newlines where expected, closes #69.
• Updated one test, expected and actual the wrong way around.
• Added a Options class.
• Added two tests to catch exceptions.
• Added a trim option to render, strips any extra whitespace.
• Minor tweaks and improvements

Line breaks MIA!

• Line breaks missing, added where expected, a couple of tests where updated to include the <br /> where it should have been in the expected output.

Bug fix, empty deltas being created

• Fixed bugs #64 and #65, empty deltas being created by the preg_match on \n
• Updated README, added a link to Quilljs
• Updated link in composer file, now goes to detail page on Transmute Coffee

Process multiple $quill_json

• Added support for passing multiple deltas into the API/parser, limited to multiple of the same type.
• Added support for reusing the renderer, added load() method to enable this.
• README updated to show new usage.
• Minor comment and variable corrections.
• Added tests to cover new feature.

Parse multiple $quill_json strings

• Add initial support for loading multiple $quill_json strings, very basic and not yet supported through the API, should be live in next version.
• Custom attributes can be added to base insert and compound delta, the base insert adds a span around the insert text; the compound delta adds the attributes to the outer HTML tag.
• Added code coverage reporting via coveralls.io.
• Increased test coverage, test for thrown exceptions and removed redundant method in Delta class.

Bugs: Parser::load() and CompoundImage

• Parser::load() wasn't resetting the deltas array, thanks tominventisbe.
• Added CompoundImage delta, Compound delta was incorrectly trying to handle images, thanks tominventisbe.
• The CompoundImage delta now assigns all defined attributes to the img tag.
• Renamed the CompositeTest, now CompoundTest, new name more closely matches what I am testing.
• Added credit to Mark Davison - Missing in the v3.00.0 release.

Version bumped to v3.01.0 because of the small new feature, all defined attributes assigned to img, without that it would have been v3.00.1