Update relative paths in start.sh script for MCE installs

This installation script must have been shuffled around from the root of
the repository since it contained relative paths to files and
directories available from the repository root. Following the directions
in the multiclusterengine/ directory results in a failed deploy because
the script assumes those relative paths.

This commit updates the script so that it installs cleanly by updating
the relative paths.

Closes #242

multiclusterengine/start.sh

@@ -41,9 +41,9 @@ fi
 
 IMG="${_REPO}:${SNAPSHOT_CHOICE}" yq eval -i '.spec.image = env(IMG)' catalogsources/multicluster-engine.yaml
 VER="${SNAPSHOT_CHOICE:0:3}" yq eval -i '.spec.channel = "stable-"+ env(VER)' multiclusterengine/operator/subscription.yaml
-oc apply -f catalogsources/multicluster-engine.yaml
+oc apply -f ../catalogsources/multicluster-engine.yaml
 oc create ns multicluster-engine --dry-run=client -o yaml | oc apply -f -
-oc apply -k multiclusterengine/operator/
+oc apply -k operator/
 
 CSVName=""
 for run in {1..10}; do
@@ -77,7 +77,7 @@ for run in {1..10}; do
 done
 
 if [ $_apiReady -eq 1 ]; then
-  oc apply -f multiclusterengine/multicluster_v1alpha1_multiclusterengine.yaml
+  oc apply -f multicluster_v1alpha1_multiclusterengine.yaml
   echo "multiclusterengine installed successfully"
 else
   echo "multiclusterengine subscription could not install in the allotted time."