Fix duplicate file entries in generated VisualD projects. Fixes #168. ...

SourceFile.toHash was necessary for AAs to do anything useful and build==true files now have precedence over build==false files.

Fix warning that for some reason only occurs on some systems...

Improve the Appender workaround.

Add workaround for corrupted Json values when using Appender.

Fix compiler error on DMD 2.063.2.

Let Json.checkType take an optional string to avoid compilation errors in the future.

Record the field name of JSON objects to improve error messages.

Adjust style of dub.internal.vibecompat.data.json to latest vibe.d and use vibe.data.json if available.

Support HTTP proxy using the "http_proxy" environment variable.

Add a DUB configuration to compile as a library without curl support.

Preserve file ownership/permissions for copied files on Posix.

Delete files before overwriting them in copyFile. Allows to rebuild an application while it is running on Linux.

Fix running executables that are not built in the CWD and create the target path if necessary.

Build to a temporary folder only if necessary. Fixes #82.

Remove dub.internal.std.process compatibility code as it doesn't support browse() and the compile status on older DMD versions isn't tracked anyway.

Represent empty relative paths as "." instead of an empty string for Path.toNativeString(). Fixes #153.

Fix error message in case of an empty source path. See #149.

Use DirEntry() instead of dirEntry() on DMD >= 2.064 to avoid deprecation warnings. Fixes #116.

Use std.stream.File instead of std.stdio.File to improve the unicode path situation. See #130.

Move dub.utils to dub.internal.utils and update copyright dates.

Remove deprecated aliases.

Rename log levels to be in line with the latest vibe.d versions.

Add unit tests to the path module and make \\UNC\ paths absolute.

Remove all unit tests from the processcompat module as many of them failed (not an issue since the new std.process is now in DMD 2.063).

Fix warnings for latest DMD beta.

fixes support for unc path

fixes unc path error

Improve JSON pretty printing and appending.

Log warnings/errors/diagnostics to stderr instead of stdout.

Preparing for the new std.process in Phobos.