Update bootstrap-navbar version

Author: manuelmeurer

rails_bootstrap_navbar.gemspec

@@ -21,6 +21,6 @@ Gem::Specification.new do |gem|
  gem.add_development_dependency 'guard-rspec', '~> 3.0'
  gem.add_development_dependency 'rails', '>= 3.0.0'
 
- gem.add_runtime_dependency 'bootstrap-navbar', '~> 1.0.0.pre4'
+ gem.add_runtime_dependency 'bootstrap-navbar', '~> 1.0.0.pre6'
  gem.add_runtime_dependency 'rails', '>= 3.0.0'
 end