Merge pull request #2344 from mingodad/patch-1

Fix possible copy and paste mistake
Merge pull request #2345 from MartinNowak/fix13149

fix Issue 13149 - released libphobos2.a is build with PIC code
Merge pull request #2362 from braddr/install-fix

change install target to match current release structure
Merge pull request #2365 from 9rnsr/2.066

Cherry-picking commits from master to 2.066 branch (for beta6)