加入 author 栏位
add Author Information field, Date Format String field and related methods (+1 squashed commit)
Squashed commits:
[fa916f4] fix typo
refine the author content: add comma only when author name exists
temp
fix author information property method (+1 squashed commit)
Squashed commits:
[3470b91] refine the author information format (+1 squashed commit)
Squashed commits:
[da46975] temp
Fix a warning in xib and add objc only
Merge pull request #67 from onevcat/adison-master

Adison master