add test for nested list writing with preceding element
Merge branch 'test_for_nested_lists_with_preceding_element' of https://github.com/amro/DTCoreText into amro-test_for_nested_lists_with_preceding_element
enhanced Writer Tests to test fragment and document mode
fixed bug where searching for list range backward would always return 0
#631
append additional \n after block elements
Merge branch 'amro-test_for_nested_lists_with_preceding_element' into develop
Added answer to #616 to Programming Guide
Added tapped word finding to Programming Guide
Update DTListItemHTMLElement.m

I'm using DTCoreText on a project of mine. Very rarely (like, once every 3-4 days) I get a "Collection was mutated while being enumerated" on this line.
Haven't gotten that error with my fix yet.
fixed incorrect parameter docu
Exclude DTCoreTextTestCase from unit tests as it is abstract
Merge pull request #633 from tailgunnerbg/develop

Update DTListItemHTMLElement.m
added missing HTML persistence tag to video attachment
added VIDEO end tag handler that extracts SRC from a SOURCE child if necessary.
closes #353
Added missing \t to #617 unit test, that was also treated wrong
moved utility method to test case superclass
added unit test for #434
added demo for letter-spacing #434
modified kerning method name
added kerning tests to writer #434