Fix library path and appearence setting not correctly handled after restart.

Fix the blank screen problem in ios 26.

1. Fix app get killed too frequently 2. Fix clipboard lookup sometimes not working in ipad split mode.

1. Use split view mode by default under ipad 2. Some bugfixes

1. Add "External Library Path" setting, 2. Fix bugs in share extension. 3. Fix "Smart chinese lookup" sometimes not working.

1. Support dark mode in ios 13 2. Some minor improvements and bugfix

Fix compatible issue with iOS 13.

1. Fix dictionary order should be kept after App update. 2. Fix some headwords can't be searched in utf-8 encoding dictionaries.

1. Make clipboard monitor works in split view/slide over mode. 2. Fix in page search

1. Add smart Chinese lookup support(Lookup Chinese in both Traditional/Simplified form automatically). 2. Improve multi-dictionaries lookup. 3. Fix file reader not working. 4. Some bug fixes.

1. Add spell suggestion 2. Bugfixes

1. Improve compatibility with iPad multi-tasking and iPhone X 2. Support split view in iphone landscape mode 3. Fix horizontal scroll problem after zoom. 4. Improve running performance 5. Many other minor improvement

1. Fix in page jump problem under IOS11 2. Support latest mdx format adjustment 3. Fix word pickup conflict with link click in some dict that use jQuery.

1. Fix crash under IOS10 2. Touch word lookup now is supported in sharing popup window. 3. Support new mdx format.

Some crash bugfix

1. Fix sound problem (Problem with mdd file in old format) 2. Fix favorites can only save one entry under multi-dictionary mode

1. Compatible with IOS9 2. Use sharing instead of clipboard monitor under IOS9

1. Allow landscape mode in iphone 2. Fix can't pickup word which initially off screen 3. Update App icon 4. Other minor bugfixes

Upgrade for IOS8

1. Fix Ipad version crashed when launched in portrait mode with no dictionaries installed 2. Some other minor fixes

1. Enable in dict lookup popover support for iphone.(Can be turn off in preference) 2. Some bugfixes.

1. Tap on search icon can switch focus to input box 2. Welcome page only be shown on startup for the first run in iphone version. 3. Fix compatibility with Xunlei Kankan

1. Fix crash when selecting dict jump list when using dict group 2. Some other minor bugfixes

1. IOS7 Style icons 2. Dictionary group support. (Multi-dictionary lookup) 3. In page search support 4. Dict jump list in multi-dictionary lookup 5. Bug fixes

1. Can monitor clipboard while in background. 2. Auto select input text when switch to lookup window 3. Some bugfixes