Fix missing dmd prefix.
add .editorconfig
replace deprecated std.zip.ArchiveMember.madeVersion with fileAttributes

- unconditionally replace backslashes
compare etag for cached downloads

- redownloads outdated cache entries
.gitignore rules for build script output
fix fetching old DMD version

- use git describe to find ancestor release

- add runCapture (returns command output as string)
Merge pull request #90 from MartinNowak/fixFileAttributes

replace deprecated std.zip.ArchiveMember.madeVersion with fileAttributes
Merge pull request #91 from MartinNowak/fixOldDMD

fix fetching old DMD version
Merge pull request #92 from MartinNowak/etag

compare etag for cached downloads
Merge pull request #93 from MartinNowak/gitignore

.gitignore rules for build script output
Merge pull request #89 from MartinNowak/editorconfig

add .editorconfig