Red Panda Dev-C++ Files

Version 6.4-beta2 FEB 2021

- fix: local variables not show up when editing in the definition of a function which declaration is not in the same file
- fix: delete a linebreak and undo, the result is not correct
- enhancement: better hightlight support in the demo of the editor options dialog's color tab
- enhancement: add support to things like 'using std::vector;'
- upgrade integrated EGE to version 21.01
- upgrade libturtle: add setBackgroundColor() setBackgroundImage() and fill() functions
- fix: chinese wchar string literals like L"字符串 2" is wrongly marked as error by gcc syntax check.
- fix: autolinks sometimes not work when the file is not saved before compiling. 
- fix: The executable file is deleted after syntax check.
- enhancement: check if the file needs to be recompiled before execute the Run command
- enhancement: use different color to display escape sequences in the string
- fix: diplay error when string is not correctly ends
- enhancement: add "sort by scope" option in the editor options dialog's code completion tab
- fix: Delete symbols pairs shouldn't be invoked when editing the comments or strings.
- change: disable the "Use UTF-8 by default" option by default (because gcc will use system's ansi encoding to encode __FILE__ )
- enhancement: add "auto load last closed files when start" option in the editor option dialog's misc tab, turned on by default
- enhancement: auto load last closed files when start