Rename nova filters to include and exclude

jeblair says: "having 'flavor_filter' be inclusive, and 'image_filter'
be exclusive is kind of mind blowing" and I agree. Let's be more
explicit.

library/cloud/nova_compute

@@ -83,9 +83,9 @@ options:
      required: true
      default: None
      version_added: "1.7"
-   image_filter:
+   image_exclude:
      description:
-        - Text to use to filter image names, for the case, such as HP, where there are multiple image names matching the common identifying portions. image_filter is a negative match filter - it is text that may not exist in the image name. Defaults to "(deprecated)"
+        - Text to use to filter image names, for the case, such as HP, where there are multiple image names matching the common identifying portions. image_exclude is a negative match filter - it is text that may not exist in the image name. Defaults to "(deprecated)"
      version_added: "1.7"
    flavor_id:
      description:
@@ -98,9 +98,9 @@ options:
      required: false
      default: 1
      version_added: "1.7"
-   flavor_filter:
+   flavor_include:
      description:
-        - Text to use to filter flavor names, for the case, such as Rackspace, where there are multiple flavors that have the same ram count. flavor_filter is a positive match filter - it must exist in the flavor name.
+        - Text to use to filter flavor names, for the case, such as Rackspace, where there are multiple flavors that have the same ram count. flavor_include is a positive match filter - it must exist in the flavor name.
      version_added: "1.7"
    key_name:
      description:
@@ -244,7 +244,7 @@ EXAMPLES = '''
       auth_url: https://region-b.geo-1.identity.hpcloudsvc.com:35357/v2.0/
       region_name: region-b.geo-1
       image_name: Ubuntu Server 14.04
-      image_filter: deprecated
+      image_exclude: deprecated
       flavor_ram: 4096
 
 # Creates a new VM with 4G of RAM on Ubuntu Trusty on a Rackspace Performance node in DFW
@@ -262,7 +262,7 @@ EXAMPLES = '''
       region_name: DFW
       image_name: Ubuntu 14.04 LTS (Trusty Tahr) (PVHVM)
       flavor_ram: 4096
-      flavor_filter: Performance
+      flavor_include: Performance
 '''
 
 
@@ -391,8 +391,8 @@ def _get_image_id(module, nova):
     if module.params['image_name']:
         for image in nova.images.list():
             if (module.params['image_name'] in image.name and (
-                    not module.params['image_filter']
-                    or module.params['image_filter'] not in image.name)):
+                    not module.params['image_exclude']
+                    or module.params['image_exclude'] not in image.name)):
                 return image.id
         module.fail_json(msg = "Error finding image id from name(%s)" % module.params['image_name'])
     return module.params['image_id']
@@ -402,7 +402,7 @@ def _get_flavor_id(module, nova):
     if module.params['flavor_ram']:
         for flavor in sorted(nova.flavors.list(), key=operator.attrgetter('ram')):
             if (flavor.ram >= module.params['flavor_ram'] and
-                    (not module.params['flavor_filter'] or module.params['flavor_filter'] in flavor.name)):
+                    (not module.params['flavor_include'] or module.params['flavor_include'] in flavor.name)):
                 return flavor.id
             module.fail_json(msg = "Error finding flavor with %sMB of RAM" % module.params['flavor_ram'])
     return module.params['flavor_id']
@@ -526,10 +526,10 @@ def main():
         name                            = dict(required=True),
         image_id                        = dict(default=None),
         image_name                      = dict(default=None),
-        image_filter                    = dict(default='(deprecated)'),
+        image_exclude                   = dict(default='(deprecated)'),
         flavor_id                       = dict(default=1),
         flavor_ram                      = dict(default=None, type='int'),
-        flavor_filter                   = dict(default=None),
+        flavor_include                  = dict(default=None),
         key_name                        = dict(default=None),
         security_groups                 = dict(default='default'),
         nics                            = dict(default=None),