NativeScript-1.5.2

Fixes:

• The first is that the added filePath is full file path, so this PR changes this and makes the paths relative.
• The second thing is that the filePath does not contain " ", so this PR adds "" around the filePath.

NativeScript-1.5.1

• fix: Add C++ Source files to the Sources group

NativeScript-1.5.0

Support for custom PBXGroups added

NativeScript-1.4.0

Rebase origin (https://github.com/alunny/node-xcode) onto current master so that we have the latest changes from upstream. Implement relative to project root search paths.

NativeScript-1.2.2

Fix framework remove function

NativeScript-1.1

Fixes quotes and lastKnownFileType of file reference

NativeScript-0.9

Fix setting build configuration properties