Upgrade to Vaadin 7.7.7

.gitignore

@@ -1,4 +1,4 @@
-# Created by https://www.gitignore.io/api/java,maven,intellij
+# Created by https://www.gitignore.io/api/java,maven,intellij,eclipse
 
 ### Java ###
 *.class
@@ -76,6 +76,60 @@ crashlytics.properties
 crashlytics-build.properties
 
 
+### Eclipse ###
+
+.metadata
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.settings/
+.loadpath
+.recommenders
+
+# Eclipse Core
+.project
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# PyDev specific (Python IDE for Eclipse)
+*.pydevproject
+
+# CDT-specific (C/C++ Development Tooling)
+.cproject
+
+# JDT-specific (Eclipse Java Development Tools)
+.classpath
+
+# Java annotation processor (APT)
+.factorypath
+
+# PDT-specific (PHP Development Tools)
+.buildpath
+
+# sbteclipse plugin
+.target
+
+# Tern plugin
+.tern-project
+
+# TeXlipse plugin
+.texlipse
+
+# STS (Spring Tool Suite)
+.springBeans
+
+# Code Recommenders
+.recommenders/
+
+
 ### JRebel ###
 
 rebel.xml