Bump version to 0.7.1

Author: wch

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: shinydashboard
 Title: Create Dashboards with 'Shiny'
-Version: 0.7.0.9000
+Version: 0.7.1
 Authors@R: c(
     person("Winston", "Chang", role = c("aut", "cre"), email = "winston@rstudio.com"),
     person("Barbara", "Borges Ribeiro", role = "aut", email = "barbara@rstudio.com"),

NEWS.md

@@ -1,5 +1,5 @@
-shinydashboard 0.7.0.9000
-=========================
+shinydashboard 0.7.1
+====================
 
 ## Full changelog