[[ setup ]] new neo4j debian repo, more generic versions (#6)

README.md

@@ -113,8 +113,7 @@ Below is the quick installation guide. Please see [here](docs/installation.md) f
 ### Step 1: Installing Python/NodeJS Dependencies
 In the project root directory, run:
 ```sh
-$ cd installation
-$ ./install_dependencies.sh
+$ ./installation/install_dependencies.sh
 ```
 
 ### Step 2: Setup Neo4j
@@ -137,6 +136,9 @@ $ # for macos, neo4j 3.5.x
 $ ./macos_neo4j_installation.sh
 ```
 
+If you encountered any errors, please checkout the [Neo4j Debian Packages](https://debian.neo4j.com/) repository for potential changes.  
+
+
 Then, copy the `example.env`  and rename it to `.env`.
 - Set your operating system:
 	- `PLATFORM=linux`

docs/installation.md

@@ -52,6 +52,8 @@ $ # for macos, neo4j 3.5.x
 $ ./macos_neo4j_installation.sh
 ```
 
+If you encountered any errors, please checkout the [Neo4j Debian Packages](https://debian.neo4j.com/) repository for potential changes.  
+
 For more information, see [here](https://www.alibabacloud.com/blog/installing-neo4j-on-ubuntu-16-04_594570), or [here](https://neo4j.com/developer/kb/using-apt-get-to-download-a-specific-neo4j-debian-package/).
 
 

installation/linux_neo4j_installation.sh

@@ -1,6 +1,10 @@
 #!/usr/bin/env bash
 
-wget -O - https://debian.neo4j.org/neotechnology.gpg.key | sudo apt-key add -
-echo 'deb https://debian.neo4j.org/repo stable/' | sudo tee -a /etc/apt/sources.list.d/neo4j.list
+# neo4j version family
+# see https://debian.neo4j.com/ for possible choices 
+VERSION='3.5'
+
+wget -O - https://debian.neo4j.com/neotechnology.gpg.key | sudo apt-key add -
+echo 'deb https://debian.neo4j.com stable' $VERSION | sudo tee /etc/apt/sources.list.d/neo4j.list
 sudo apt-get update
-sudo apt-get install neo4j=3.5.9
+sudo apt-get install neo4j