Clear/init cache before running Docker build

Closes #260.

Author: surma

build.sh

@@ -63,6 +63,8 @@ function main {
   mkdir -p "$HTML_OUTPUT/commit-snapshots"
   mkdir -p "$HTML_OUTPUT/review-drafts"
 
+  clearCacheIfNecessary
+
   if [[ $USE_DOCKER == "true" ]]; then
     doDockerBuild
     exit 0
@@ -76,8 +78,6 @@ function main {
 
   doLint
 
-  clearCacheIfNecessary
-
   updateRemoteDataFiles
 
   startHighlightServer