Fix at suggestion's failure on null array

Signed-off-by: Xavier Yao <xavieryao@live.cn>
Restore logout

Signed-off-by: Xavier Yao <xavieryao@live.cn>
Fix EditorActionListener on LoginActivity

Signed-off-by: Xavier Yao <xavieryao@live.cn>
Automatically optimize imports

Signed-off-by: Xavier Yao <xavieryao@live.cn>
Automatically rearranged codes

Signed-off-by: Xavier Yao <xavieryao@live.cn>
Raise minAPIVersion to 15

Signed-off-by: Xavier Yao <xavieryao@live.cn>
Merge branch '1.1.0-dev' of https://github.com/PaperAirplane-Dev-Team/BlackLight into 1.1.0-dev