Visual D 0.48-beta1

[Rainer Schuetze]

Hi,

I have prepared a beta for the next release of Visual D. Here are some 
highlights:

- fixed installation/uninstallation issues in VS2017
- new VC project: allow adding C++ skeleton, fix some default settings
- settings: removed some legacy settings and made scope clearer
- dparser: support for "static foreach", fixed "find references", 
experimental "show value of constants in tooltip"
- mago: fix crash in VS2017, shows return values of functions stepped over
- fixed "Compile and Run" on selection
- fixed help via F1

You can find the installer and more details here:
https://github.com/dlang/visuald/releases/tag/v0.48.0-beta1

Rainer