Added Pry.pager config option, set to true by default, if set to false

then never use a pager (if pager is invoked through stagger_output()
method anyway)

lib/pry/command_base_helpers.rb

@@ -63,9 +63,10 @@ class Pry
         end
       end
       
-      # Try to use `less` for paging, if it fails then use simple_pager
+      # Try to use `less` for paging, if it fails then use
+      # simple_pager. Also do not page if Pry.pager is falsey
       def stagger_output(text)
-        if text.lines.count < page_size
+        if text.lines.count < page_size || !Pry.pager
           output.puts text
           return
         end

lib/pry/pry_class.rb

@@ -49,7 +49,7 @@ class Pry
     #   Pry instances.
     attr_accessor :print
 
-    # @return [Proc] The Proc to use for printing by default by all
+    # @return [Proc] The Proc to use for printing exceptions by default by all
     #   Pry instances.
     attr_accessor :exception_handler
 
@@ -83,6 +83,10 @@ class Pry
     # @return [Boolean]
     attr_accessor :color
 
+    # Determines whether paging (of long blocks of text) is enabled.
+    # @return [Boolean]
+    attr_accessor :pager
+
     # Determines whether the rc file (~/.pryrc) should be loaded.
     # @return [Boolean]
     attr_accessor :should_load_rc
@@ -213,6 +217,7 @@ class Pry
     @hooks = DEFAULT_HOOKS
     @custom_completions = DEFAULT_CUSTOM_COMPLETIONS
     @color = true
+    @pager = true
     @should_load_rc = true
     @rc_loaded = false
     @cli = false