Add preview to the context menu of the browser
Merge pull request #485 from chengbo/develop

center prompting message in log in page
Merge pull request #486 from timrae/browserPreview

Add preview to the long click menu of the browser
New API URL
Build before downloading if key available
New API URL
Updated strings from Crowdin
Commit and check after update, it is always what I do anyway
Bumped version to 2.3alpha26
@branch-specific
complete the Chinese (Simplified) localization