grep exit code fix, docs update

README.md

@@ -314,7 +314,7 @@ You don't necessarily need to be a developer to become a contributor. We can use
 
 If you know how to code, we primarily use Python (Django), Javascript (React), HTML and SCSS. See the [Development Quickstart](http://docs.webodm.org/#development-quickstart) and [Contributing](/CONTRIBUTING.md) documents for more information.
 
-To make a contribution, you will need to open a pull request ([here's how](https://github.com/Roshanjossey/first-contributions#fork-this-repository)). To make changes to WebODM, make a clone of the repository and run `./devenv.sh start`.
+To make a contribution, you will need to open a pull request ([here's how](https://github.com/Roshanjossey/first-contributions#fork-this-repository)). To make changes to WebODM, make a clone of the repository and run `./webodm.sh start --dev`.
 
 If you have questions visit us on the [forum](http://community.opendronemap.org/c/webodm) and we'll be happy to help you out with your first contribution.
 

slate/source/includes/_fordevelopers.md

@@ -22,7 +22,7 @@ Once you have a development environment, read about the [project overview](#proj
 
 Follow the [Getting Started](https://github.com/OpenDroneMap/WebODM#getting-started) instructions, then run:
 
-`./devenv.sh start`
+`./webodm.sh start --dev`
 
 That's it! You can modify any of the files, including SASS and React.js files. Changes will be reflected in the running WebODM instance automatically. 
 
@@ -36,7 +36,7 @@ We think testing is a necessary part of delivering robust software. We try to ac
 
 To run the unit tests, simply type:
 
-`./devenv.sh runtests`
+`./webodm.sh test`
 
 ## Project Overview
 

webodm.sh

@@ -346,8 +346,7 @@ plugin_disable(){
 run_tests(){
     # If in a container, we run the actual test commands
     # otherwise we launch this command from the container
-
-    in_container=$(grep 'docker\|lxc' /proc/1/cgroup)
+    in_container=$(grep 'docker\|lxc' /proc/1/cgroup || true)
     if [[ "$in_container" != "" ]]; then
         echo -e "\033[1mRunning frontend tests\033[0m"
         run "npm run test"