Remove support for Ruby 1.8.7

It's like, a million times dead. Concurrent Ruby won't support it which forces our hand though.

.travis.yml

@@ -3,6 +3,5 @@ rvm:
   - ruby-head
   - 2.1
   - 1.9.3
-  - 1.8.7
   - jruby
 

README.md

@@ -16,8 +16,7 @@ Usage is modelled on the
 straightforward.
 
 - Kafka 0.8 is supported.
-- Ruby 1.8.7 and Ruby 2.1.1 have been tested, but JRuby and versions
-  >= 1.8 should work as long as the librdkafka library is installed.
+- Ruby 1.9.3, 2.1.1 and JRuby are tested against
 - This is an early alpha version of the gem, so expect bumps in the
   road.
 
@@ -54,7 +53,3 @@ yet coordinate partition (re)assigment within consumer groups.
     messages.each do
         |msg| p.push(msg)
     end
-
-## Questions?
-
-Stan Campbell can be reached at stan.campbell3 at( @ ) gmail.com

hermann.gemspec

@@ -3,14 +3,15 @@ $LOAD_PATH.unshift(File.expand_path(File.dirname(__FILE__) + '/lib'))
 
 require 'hermann/version'
 
-SPEC = Gem::Specification.new do |s|
+
+Gem::Specification.new do |s|
   s.name               = "hermann"
   s.version            = Hermann::VERSION
 
-  s.authors = ["Stan Campbell", 'R. Tyler Croy']
-  s.description = 'Ruby gem wrapper for librdkafka'
-  s.summary = 'A Kafka consumer/producer gem based on the librdkafka C library.'
-  s.email = ['stan.campbell3@gmail.com', 'rtyler.croy@lookout.com']
+  s.authors = ['R. Tyler Croy', "Stan Campbell"]
+  s.description = 'Ruby gem for talking to Kafka'
+  s.summary = 'A Kafka consumer/producer gem supporting both MRI and JRuby'
+  s.email = ['rtyler.croy@lookout.com', 'stan.campbell3@gmail.com']
   s.homepage = 'https://github.com/lookout/Hermann'
   s.licenses = ['MIT']
 
@@ -22,7 +23,7 @@ SPEC = Gem::Specification.new do |s|
   s.rubygems_version = '2.2.2'
   s.specification_version = 3 if s.respond_to?(:specification_version)
 
-  s.add_dependency 'concurrent-ruby'
+  s.add_dependency 'concurrent-ruby', '~> 0.7.0'
 
   if RUBY_PLATFORM == "java"
     s.add_runtime_dependency 'jar-dependencies', '~>0.1.2'