Updated Dride to Raspbian Stretch (#1)

* Stretch base system working W/O DRIDE

- Currently removed Dride edits/software to get base OS working

* Enabled Ether over USB

I slightly rearranged a few startups in stage2 to give us room for more expansion later.  Boot files update important to come prior to Dride software.
Stretch base system working W/O DRIDE

* Dride+Stretch working

- wifi works with specific Dride network
- usb0 interface also works if you need to debug/hack

All Dride network items have been separated into this step

* DrideOS gets Dride software added back in on Debian Stretch

- software base; testing commencing

* Added new dride partition, clean, updated README

- updated README to explain how this has been modified vs. upstream
- removed and cleaned unused scripts
- added dride partition creation on startup (runonce)
- drideOS conditional renamed to dride-plus

* Use the /dride path and provide soft links during software installation

- updated README

README.md

@@ -36,3 +36,48 @@ maintenance and allows for more easy customization.
    creates necessary groups and gives the pi user access to sudo and the
    standard console hardware permission groups.
 
+----
+
+###Explaination of changes vs. upstream main repo
+
+The goal is to keep minimal changes from upstream such that pulling updates is easier.  Therefore we added Dride OS changes and software installation as subsequent steps within stage2.
+
+* stage 0 - unchanged from upstream
+* stage 1 - unchanged from upstream
+* stage 2 - `00-copies-and-fills`, `01-sys-tweaks`, `02-net-tweaks` and `10-cleanup` are unchanged
+* stage 3, 4, 5 - removed
+
+NOTE: resizing the `root` parition apart of the stage 2 upstream step is overruled by a subsequent step (03-boot-files) found below.  Hence the root partition is **not** resized.
+
+Changes/complimentary for DrideOS
+Within Stage 2, the following additions have been made:
+
+* `03-boot-files`
+* `04-dride-filesystem`
+* `05-dride-net`
+* `06-dride-base`
+
+
+`03-boot-files`
+
+Modifies the boot config files to **enable** Ether over USB.  This is very helpful when you wish to plug your Dride via USB port into your computer and access via SSH.
+This also keeps the Dride WiFi access point working as well.
+
+`04-dride-filesystem`
+
+Ommitted for this current version.
+
+`05-dride-net`
+
+Enable Dride WiFi access point.
+
+`06-dride-base`
+
+Install all the Dride software and any dependencies needed to run the software.
+This takes an optional environment argument that will allow differentiation between two software modes.
+
+The base software package - essentials - is installed if you do not provide any specific mention of the enviornment variable.  This consists of minimal software to get the Dride working.
+
+```export OS_TYPE="dride-plus"```
+
+Optionally, if you set the environment varable **before** build time - you can add additonal software features best reserved for a Raspberry Pi 3 or similar hardware.