Update to new rails validators

app/models/device.rb

@@ -10,5 +10,5 @@ class Device < ActiveRecord::Base
   has_many :tool_bays, dependent: :destroy
   has_one  :planting_area, dependent: :destroy
 
-  validates_uniqueness_of :name
+  validates :name, uniqueness: true
 end

app/models/peripheral.rb

@@ -1,8 +1,8 @@
 class Peripheral < ActiveRecord::Base
   belongs_to :device
-  validates_presence_of :device
-  validates_presence_of :pin
-  validates_uniqueness_of :pin, scope: :device
-  validates_inclusion_of :mode, in: Sequence::ALLOWED_PIN_MODES
-  validates_presence_of :label
+  validates :device, presence: true
+  validates :pin, presence: true
+  validates :pin, uniqueness: { scope: :device }
+  validates :mode, inclusion: { in: Sequence::ALLOWED_PIN_MODES }
+  validates :label, presence: true
 end

app/models/regimen.rb

@@ -3,8 +3,8 @@ class Regimen < ActiveRecord::Base
   # Ocasionally to "regimans".
   # This is the workaround.
   self.table_name = "regimens"
-  validates_presence_of :name
-  validates_uniqueness_of :name, scope: :device
+  validates :name, presence: true
+  validates :name, uniqueness: { scope: :device }
 
   has_many   :regimen_items, dependent: :destroy
   belongs_to :device

app/models/regimen_item.rb

@@ -1,5 +1,5 @@
 class RegimenItem < ActiveRecord::Base
   belongs_to :regimen
   belongs_to :sequence
-  validates_presence_of :sequence
+  validates :sequence, presence: true
 end

app/models/schedule.rb

@@ -3,9 +3,9 @@ class Schedule < ActiveRecord::Base
   UNITS_OF_TIME = %w(minutely hourly daily weekly monthly yearly)
 
   belongs_to :sequence
-  validates_presence_of :sequence_id
+  validates :sequence_id, presence: true
   belongs_to :device
-  validates_presence_of :device_id
+  validates :device_id, presence: true
 
   def schedule_rules
     @schedule_rules ||= IceCube::Schedule.new(start_time, end_time: end_time) do |sch|

app/models/sequence.rb

@@ -9,8 +9,8 @@ class Sequence < ActiveRecord::Base
 
   # allowable label colors for the frontend.
   [ :name, :kind ].each { |n| validates n, presence: true }
-  validates_inclusion_of :color, in: COLORS
-  validates_uniqueness_of :name, scope: :device
+  validates :color, inclusion: { in: COLORS }
+  validates :name, uniqueness: { scope: :device }
   STEPS = [ :var_set, :var_get, :move_absolute, :move_relative, :write_pin,
             :read_pin, :wait, :send_message, :execute, :if_statement]
   ALLOWED_CHANNEL_NAMES = [ "ticker", "error_ticker",