[ADD] addEmojis returns immediately if useSystemDefault
[ADD] useSystemDefault in Emojicon attibutes and TextView/EditText
[ADD] useSystemDefault in EmojiAdapter
[ADD] useSystemDefault in EmojiGridFragment
[ADD] useSystemDefault in EmojiconsFragment
[ADD] useSystemDefault in EmojiconRecentsGridFragment
[UPDATE] example can switch useSystemDefault by code
[ADD] example now has a checkbox that can switch between use system default emojicon and use custom ones (EditText/TextView need to be fixed)
[UPDATE] lower min sdk version requirement to 7
[UPDATE] suggested fixes
[UPDATE] suggested fixes
Merge pull request #23 from KTachibanaM/systemDefaultEmojicon

System default emojicon