adds a notice to restart the server because of gem changes

fixes #90
add headline string attribute to search page
remove headline attribute from image
remove headline attribute from slider widget
removed body_attributes dependency on @obj
exclude LoginPage and ResetPasswordPage from sitemap
add missing cms attribute definitions on homepage
remove .well class from widgets
adopt examples and core widgets
adopt hero unit widget description
bugfix: missing bundle after changing Gemfile

+ errors were thrown, when one of the kickstart gems were not installed
on the local machine. This did not cause a severe error later on,
because bundle was run later in the succession of the script.

fixes #91
rename blog entry to blog post
rename HeroUnitWidget to TeaserWidget
show some respect for the reporter
bugfix: redirect_link? is not defined anymore
add sublime project files to gitignore
remove controller class from body html tag
design template for tour