improve behavior for tool windows and scroll bars, add 2 menus, 2 bugfixed

• improve behavior
  • tool windows such as Catalog/Folder Window
  • If scroll bars are required only for width or height of an image, only the scroll bars that are required are displayed.
    • reported by @Chocolateiro on issue #37
  • can Scroll images with cursor keys when to show scrollbars
    • reported by @Chocolateiro on issue #37
• add 'Don't update history'
  • reported by @Chocolateiro on issue #37
• add 'Show full path of the volume'
  • reported by @Chocolateiro on issue #37
• bugfixed: The left end was not displayed when the image is larger than the screen
• bugfixed: prevent to crash on incorrect file
  • reported by @vatterspun on issue #38
  • reported by @GitHubRulesOK on issue #35

improved loading JPEG, Exif display, 2 bugfixed

• improved loading JPEG
  • Added option to change precision (iDCT) at JPEG loading
    • reported by @Chocolateiro on issue #34
  • The JPEG in CYMK format can be correctly read using ICC Profile.
• Improvement of Exif information display
• bugfixed: When multiple shortcut keys were registered, it did not work properly
  • reported on issue #33
• bugfixed: thubnail images of the catalog could not be made

Enable deletion archive, 3 bugfixed

• Enable deletion when archive is open
• bugfixed: When restarting with the image in the directory opened, only one page was displayed regardless of 2 page spread settings
• bugfixed: Bookmarks were improperly increased when restarting the application
• bugfixed: failed to restore the images contained in 7z and zip archives at startup
• support old distribution (on linux)
• support for thumbnail database (on linux)
• support Prohibit multiple running (on Linux)

improve behavior of run by file association, bugfixed

• Enable QtSDK standard multilingual resource
• Turn on checking if associations are defined in the registry
• support for file association for current user only
• bugfixed: Opening an image file in association when multiple activation is prohibited causes the z-order of the window to be inappropriate
• bugfixed: When multiple image activation is prohibited, even when image file is opened more than once by association, it does not show only 1-page display
• Change zip extraction to use 7zip (for linux)
• validate desktop configulation(on linux)
  • reported by @probonopd on issue #31

Add Greek translation, abolished a menu, support for zip with Deflate64, bugfixed

• Add Greek translation(written by geogeo.gr)
  • thanks a lot! :)
• abolished 'Show titlebar on fullscreen'
  • Because I concluded that there was an illegal behavior caused by a bug in Qt when I manipulated the menu and I can not fix it.
• support for zip with Deflate64
  • Discontinued support by zlib / minizip and switched to zip support with 7zip
  • reported by @Chocolateiro on issue #28
• bugfixed: When changing the option of Shader, it was impossible to display the upper and lower bars at full screen
• add Linux support as portable AppImage(rev2)

changing rendering method, support Direct2D, bugfixed

• Updated to Qt 5.9.1
• Rendering with Windows GDI is standard on Windows, from this version
  • significant speed up
  • on issue #26
• support Direct2D rendering
• bugfixed: loading of PNG was very slow
  • on issue #25

JPEG reading method improved, 3 bugfixed

• JPEG reading method improved
  • However, there may not be a speedup that can be experienced
• bugfixed: Rebooting the application with the archive open failed to load correctly
• bugfixed: There was a Tiff file that can not be read correctly
  • reported by @vilmantasr on issuce #24
• bugfixed: can read special JPEG data such as CMYK or YCCK. However, the color is incorrect

Improvement of behavior, 3 bugfixed

• Improvement of behavior when an image file is specified and opened
  • requested by @LRN #14
• delete the current image by shortcut key
  • requested by @Gitoffthelawn #23
• bugfixed: The first image of Volume (mostly the cover of the book) was displayed twice
• bugfixed: When the folder path was long in FolderWindow, the width of the window was widened
• bugfixed: When the full screen signage was 2 page spread view, the left and right were opposite
• Removal of unnecessary warning output

Improvement of file prefetching, zooming, bugfixed

• Improvement of file prefetching
  • Speedup when Volume Switching
  • Speedup when QuickViewer is opened with images specified
    • reported by @LRN on issue #14
• Switching the image while zooming will return to the upper left
  • reported by @xd1986k on issue #21
• bugfixed: images which mislabelled the extension, could not be opened
  • reported by @xd1986k on issue #22
• bugfixed: Irregular end with an unregistered mouse input on Mouse Config
• bugfixed: memory leak occurred if you made an image in the same folder more than once(via v0.9.0_rev2)

Improved stability of x86 release, 3 bugfixed

• Improved stability of x86 release
  • bugfixed: Irregular end often, when an image exceeding 4096 pixels is reading
    • issue #20
  • bugfixed: Irregular end when image loading high load
• bugfixed: Illegal termination when reading images from archives