shinycssloaders v1.0.0

• Add support for custom images with image parameter (#46)
• Add support for making the spinner show up on top of the output instead of replacing it, with a hide.ui parameter (#22)
• Add id parameter to withSpinner() to allow you to target a specific spinner with CSS (#19)
• Allow spinner type 0, which means no loading icon is shown (#18)
• Changed the license from GPL-3 to MIT
• Fix bug where loaders weren't working in uiOutput (#39)
• Fix bug where withSpinner() was causing shiny::appendTab() to break (#45)
• Add support for proxy.height to be specified as a number instead of a string (300 vs "300px")
• Fixed bug where spinner wasn't showing up for certain output IDs such as "map" (#49)
• Clarify the custom.css parameter which was causing confusion (#21)
• Don't expose 'assets' as a resourch path because it blocks shiny apps from having a www/assets/ folder (#48)
• Internal refactoring: Use one CSS file for all styles, and use CSS files to load custom CSS of each style (#37)
• Complete revamp of all the documentation
• Added a sample Shiny app "demo" that lets you experiment with all loader types and parameters
• File cleanup: Remove all files and dirs from inst/css-loaders and only keep the CSS (#38)