Elaborated on what the root project can/should do.

ssg-0.4.0.md

@@ -1,23 +1,28 @@
 # Targeting 0.4.0: Ideas and Plans
 
-- Have the following layout of dirs and files. It is a combined gradle/ssg project.
-  - bin: a folder for shell scripts
-    - ssg: a shell script to invoke the ssg-cli
-  - pages: a source set for pages
-    - groovy
-    - wvc
-    - gst
-  - parts: a source set for parts/components
-    - groovy
-    - wvc
-    - gst
-  - ssg: the folder for the build logic
-    - buildSrc: a gradle subproject where we can put custom build logic that is accessible from scripts.
-      - src
-        - groovy
-      - build.gradle
-    - production.ssg.groovy: a 'production' build
-    - preview.ssg.groovy: a 'preview' build
-  - texts: a general folder for texts and other textual data, can be .md, .txt, .html, etc.
-  - build.gradle: the root project build.gradle 
-  - settings.gradle: the usual gradle settings
+Have the following layout of dirs and files. It is a combined gradle/ssg project.
+- bin: a folder for shell scripts
+  - ssg: a shell script to invoke the ssg-cli
+- pages: a source set for pages
+  - groovy
+  - wvc
+  - gst
+- parts: a source set for parts/components
+  - groovy
+  - wvc
+  - gst
+- src: a source set for the main/root project which can be depended upon by everything else. Useful for models, etc.
+  - groovy
+  - java
+  - resources
+- ssg: the folder for the build logic
+  - buildSrc: a gradle subproject where we can put custom build logic that is accessible from scripts.
+    - src
+      - groovy
+        - default.ssg.groovy: the 'default' build, which production/preview/etc. can extend
+    - build.gradle
+  - production.ssg.groovy: a 'production' build
+  - preview.ssg.groovy: a 'preview' build
+- texts: a general folder for texts and other textual data, can be .md, .txt, .html, etc.
+- build.gradle: the root project build.gradle 
+- settings.gradle: the usual gradle settings