version 1.3

+ added cli option to launch litetran collapsed
+ added large icon for unity and windows
+ added command line option to start litetran collapsed in tray
+ added notification about network errors
+ added source language detection
+ added wait cursor during translation

* improved translation result popup
* length of text to pronounce is unlimited
* redesign in about dialog
* redesign in config dialog
* updated application icon
* save clipboard content in win32 and restore after translation
* removed icu dependency in windows distribution (reduced dist size)
* inno setup was replaced to nsis (via cpack)