diff --git a/.gitignore b/.gitignore
index 37102db..935d5c6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+build
 components
 node_modules
 *.css
\ No newline at end of file
diff --git a/build/index.html b/build/index.html
deleted file mode 100644
index dd46b43..0000000
--- a/build/index.html
+++ /dev/null
@@ -1,8 +0,0 @@
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observerSentinel={};CompoundObserver.prototype=createObject({__proto__:Observer.prototype,connect_:function(){if(hasObserve){for(var a,b=!1,c=0;c<this.observed_.length;c+=2)if(a=this.observed_[c],a!==observerSentinel){b=!0;break}b&&(this.directObserver_=getObservedSet(this,a))}this.check_(void 0,!this.reportChangesOnOpen_)},disconnect_:function(){for(var a=0;a<this.observed_.length;a+=2)this.observed_[a]===observerSentinel&&this.observed_[a+1].close();this.observed_.length=0,this.value_.length=0,this.directObserver_&&(this.directObserver_.close(this),this.directObserver_=void 0)},addPath:function(a,b){if(this.state_!=UNOPENED&&this.state_!=RESETTING)throw Error("Cannot add paths once started.");var b=getPath(b);if(this.observed_.push(a,b),this.reportChangesOnOpen_){var c=this.observed_.length/2-1;this.value_[c]=b.getValueFrom(a)}},addObserver:function(a){if(this.state_!=UNOPENED&&this.state_!=RESETTING)throw Error("Cannot add observers once 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