Add find_by as an alias of first

lib/hawk/model/proxy.rb

@@ -44,6 +44,7 @@ def all(params = {})
       def first(params = {})
         limit(1).all(params).first
       end
+      alias find_by first
 
       def first!(params = {})
         first(params) or raise Hawk::Error::NotFound, "Can't find #{klass} with #{params.to_json}"

lib/hawk/model/querying.rb

@@ -72,6 +72,7 @@ def from(path)
         def first(params = {})
           limit(1).first(params)
         end
+        alias find_by first
 
         # Looks for the first record or raises a
         # {Hawk::Error::NotFound} if not found

spec/basic_operations_spec.rb

@@ -44,6 +44,12 @@ class Person < Hawk::Model::Base
     end
   end
 
+  describe '.find_by' do
+    it 'is an alias of first' do
+      expect(Person.method(:find_by).original_name).to eq(:first)
+    end
+  end
+
   describe '.all' do
     specify do
       stub_request(:GET, "http://zombo.com/people").