Add Nate's changes in

Two heads clearly better than one here

ui/src/hosts/components/HostsTable.js

@@ -262,7 +262,7 @@ const SearchBar = React.createClass({
         <input
           type="text"
           className="form-control"
-          placeholder="Filter by Hostname..."
+          placeholder="Filter by Host..."
           ref="searchInput"
           onChange={this.handleChange}
         />

ui/src/kapacitor/components/KapacitorRule.js

@@ -152,7 +152,7 @@ export const KapacitorRule = React.createClass({
     }
 
     if (this.thresholdValueEmpty() || this.relativeValueEmpty()) {
-      return 'Please enter a value in the Values section'
+      return 'Please enter a value in the Rule Conditions section'
     }
 
     return ''