Fixed warnings triggered by gem build

.gitignore

@@ -14,4 +14,5 @@
 /spec/testing.csv
 testdata/*.xml
 
-/bbbevents-*
+/bbbevents-*
+/pec

bbbevents.gemspec

@@ -10,9 +10,9 @@ Gem::Specification.new do |spec|
   spec.email         = ["[email protected]"]
 
   spec.summary       = %q{Easily parse data from a BigBlueButton recording's events.xml.}
-  spec.description   = %q{Easily parse data from a BigBlueButton recording's events.xml.}
+  spec.description   = %q{Ruby gem for easily parse data from a BigBlueButton recording's events.xml.}
   spec.homepage      = "https://www.blindsidenetworks.com"
-  spec.license       = "LGPL 3.0"
+  spec.license       = "LGPL-3.0"
 
   spec.files         = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(test|spec|features)/})
@@ -21,10 +21,11 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", ">= 1.15"
+  spec.add_development_dependency "bundler", "~> 1.15"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.4"
 
   # Gem dependecies.
-  spec.add_dependency "activesupport"
+  spec.add_dependency 'activesupport', '~> 5.0', '>= 5.0.0.1'
+
 end