bundle improvements (#159)

* don't beautify bundle
* always enable source-map-support in CLI
* remove TERSER_DEBUG from CLI

bin/uglifyjs

@@ -13,11 +13,9 @@ var program = require("commander");
 var bundle_path = __dirname + "/../dist/bundle.js";
 if (!process.env.TERSER_NO_BUNDLE && fs.existsSync(bundle_path)) {
     var UglifyJS = require(bundle_path)
-    if (process.env.TERSER_DEBUG) {
-        try {
-            require("source-map-support").install();
-        } catch (err) {}
-    }
+    try {
+        require("source-map-support").install();
+    } catch (err) {}
 } else {
     var UglifyJS = require("../tools/node.js");
 }

package.json

@@ -49,7 +49,7 @@
     "coveralls": "coveralls < coverage/lcov.info",
     "lint": "eslint lib",
     "lint-fix": "eslint --fix lib",
-    "prepare": "cd dist && TERSER_NO_BUNDLE=1 ../bin/uglifyjs ../lib/utils.js ../lib/ast.js ../lib/parse.js ../lib/transform.js ../lib/scope.js ../lib/output.js ../lib/compress.js ../lib/sourcemap.js ../lib/mozilla-ast.js ../lib/propmangle.js ../lib/minify.js ../tools/exports.js -mc -d \"MOZ_SourceMap=require('source-map')\" --source-map \"includeSources=true,url='bundle.js.map'\" -e \"exports:(typeof module != 'undefined' ? module.exports : Terser = {})\" -b ascii_only --comments /license/ -o ../dist/bundle.js"
+    "prepare": "cd dist && TERSER_NO_BUNDLE=1 ../bin/uglifyjs ../lib/utils.js ../lib/ast.js ../lib/parse.js ../lib/transform.js ../lib/scope.js ../lib/output.js ../lib/compress.js ../lib/sourcemap.js ../lib/mozilla-ast.js ../lib/propmangle.js ../lib/minify.js ../tools/exports.js -mc -d \"MOZ_SourceMap=require('source-map')\" --source-map \"includeSources=true,url='bundle.js.map'\" -e \"exports:(typeof module != 'undefined' ? module.exports : Terser = {})\" -b beautify=false,ascii_only --comments /license/ -o ../dist/bundle.js"
   },
   "keywords": [
     "uglify",