New answers tagged development
If what you want is the bells and whistles (graphcal user interface, buttons for everything, project templates with finished page layouts etc) there are alternatives to DW. Personally I can't stand DW because I feel like I loose control over many aspects of the development process, so I usually stick to the mentioned editor "Sublime Text" as it has a large ...
Fiddler now has an Alpha build based on Mono.
I just checked out the source code. The code is not not suitable for Mac OS. configure: error: i386-apple-darwin13.0.0 is not supported (yet). Sorry.
I believe the simplest answer to your main question is 'No.' Even though OS X can be used for gaming and developing, the former is never the user's goal. You're better off sticking to your current environment of Windows and Ubuntu, unless you're considering developing iOS or OS X applications using Xcode, which can (mostly) only be done in Mac OS X. If ...
My similar issue was solved by updating the packages it relies on. I did this with: install.packages(c("Rcpp", "httpuv", "shiny")) or in general: update.packages()
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