Merge pull request #514 from metamx/reduce-bloat

Reduce some bloat in the code base
diff --git a/docs/content/Booting-a-production-cluster.md b/docs/content/Booting-a-production-cluster.md
index fc4f559..cd1205b 100644
--- a/docs/content/Booting-a-production-cluster.md
+++ b/docs/content/Booting-a-production-cluster.md
@@ -39,7 +39,7 @@
 The Whirr recipe for Druid is the configuration file `$WHIRR_HOME/recipies/druid.properties`. You can edit this file to suit your needs -- it is annotated and self-explanatory. Here are some hints about that file:
 
 * Set `whirr.location-id` to a specific AWS region (e.g., us-east-1) if desired, else one will be chosen for you.
-* You can choose the hardware used with `whirr.hardware-id` to a specific AWS region (e.g., m1.large). If you don't choose an image via `whirr.image-id` (image must be compatible with hardware), you'll get plain vanilla Linux.
+* You can choose the hardware used with `whirr.hardware-id` to a specific instance type (e.g., m1.large). If you don't choose an image via `whirr.image-id` (image must be compatible with hardware), you'll get plain vanilla Linux.
 * SSH keys (not password protected) must exist for the local user. If they are in the default locations, `${sys:user.home}/.ssh/id_rsa` and `${sys:user.home}/.ssh/id_rsa.pub`, Whirr will find them. Otherwise, you'll have to specify them with `whirr.private-key-file` and `whirr.public-key-file`.
 * Be sure to specify the absolute path of the Druid realtime spec file `realtime.spec` in `whirr.druid.realtime.spec.path`.
 * Two Druid cluster templates (see `whirr.instance-templates`) are provided: a small cluster running on a single EC2 instance, and a larger cluster running on multiple instances. The first is a good test case to start with.
@@ -58,7 +58,7 @@
 ```bash
 % $WHIRR_HOME/bin/whirr launch-cluster --config $WHIRR_HOME/recipes/druid.properties
 ```
-If Whirr starts without an errors, you should see the following message:
+If Whirr starts without any errors, you should see the following message:
 
     Running on provider aws-ec2 using identity <your-aws-id-here>
     
@@ -71,7 +71,7 @@
     
 The final message will contain login information for the instance.
 
-Note that the Whirr will return an exception if any of the nodes fail to launch, and the cluster will be destroyed. To destroy the cluster manually, run the following command:
+Note that Whirr will return an exception if any of the nodes fail to launch, and the cluster will be destroyed. To destroy the cluster manually, run the following command:
 
 ```bash
 % $WHIRR_HOME/bin/whirr destroy-cluster --config $WHIRR_HOME/recipes/druid.properties