Updated podspec for Cocoapods 0.18
Updated version no
disabled square bullet overriding for now.

This was causing trouble with the editor since for an empty LI entry the font would get messed up after reopening a saved document.
More efficient solution to line truncation in DTAttributedLabel.
Bug fixes in DTCoreTextLayoutFrame :
- paragraphRanges was not properly calculated when a string isn't ended with '\n'
- uninitialized variable baseWritingDirection in [DTCoreTextLayoutFrame_buildLinesWithTypesetter] so for a attributed strings without paragraph style (by ex. created with [NSAttributedString initWithString:] ) lines were rendered wrong
Merge pull request #394 from shc-vj/master

More efficient solution to line truncation in DTAttributedLabel, bug fixes in DTCoreTextLayoutFrame
fixed bug in -paragraphRanges, optimized to avoid slow splitting