Some rewording and style fixes

Author: leeonadoh

doc/api/api_changes/2015-03-03-LEO.rst

@@ -1,22 +1,21 @@
 Added set_params function to all Locator types
 ````````````````````````````````````````````````
 
-This was a bug fix targeted at making the api for Locators more consistent. 
+This was a bug fix targeted at making the api for Locators more consistent.
 
-In the old behavior, only locators of type MaxNLocator have set_params() 
-available, causing its use on any other Locator to throw an AttributeError *(
-aside: set_params(args) is a function that sets the parameters of a Locator 
-instance to be as specified within args)*. Since MaxNLocator itself is a 
-subtype of Locator, the fix will involve the moving of set_params()to the 
-Locator class.
+In the old behavior, only locators of type MaxNLocator have set_params()
+defined, causing its use on any other Locator to throw an AttributeError *(
+aside: set_params(args) is a function that sets the parameters of a Locator
+instance to be as specified within args)*. The fix involves moving set_params()
+to the Locator class such that all subtypes will have this function defined.
 
-Since each of the Locator subtype have their own modifiable parameters, a 
-universal set_params() in Locator isn't ideal. Instead, a default no-operation 
-function that raises a warning is implemented in Locator. Subtypes extending 
-Locator will then override with their own implementations. Subtypes that do 
-not have a need for set_params() will fall back onto their parent's 
-implementation, which raises a warning as intended. 
+Since each of the Locator subtype have their own modifiable parameters, a
+universal set_params() in Locator isn't ideal. Instead, a default no-operation
+function that raises a warning is implemented in Locator. Subtypes extending
+Locator will then override with their own implementations. Subtypes that do
+not have a need for set_params() will fall back onto their parent's
+implementation, which raises a warning as intended.
 
-In the new behavior, all Locator instances will not throw an AttributeError 
-when set_param() is called. For Locators that do not implement set_params(), 
-the default implementation in Locator is used.
+In the new behavior, all Locator instances will not throw an AttributeError
+when set_param() is called. For Locators that do not implement set_params(),
+the default implementation in Locator is used.

doc/users/whats_new/2015-03-03_locator-set_params.rst

@@ -1,13 +1,16 @@
 API Consistency fix within Locators set_params() function
 ---------------------------------------------------------
 
-set_params() function, which sets parameters within a Locator type instance, is now available to all Locator types. The implementation also prevents unsafe usage by strictly defining the parameters that a user can set.
+set_params() function, which sets parameters within a Locator type instance,
+is now available to all Locator types. The implementation also prevents unsafe
+usage by strictly defining the parameters that a user can set.
+
+To use, simply call set_params() on a Locator instance with desired arguments:
+::
 
-To use, simply initialize a Locator type, and call set_params() with desired arguments: ::
-    
     loc = matplotlib.ticker.LogLocator()
     # Set given attributes for loc.
     loc.set_params(numticks=8, numdecs=8, subs=[2.0], base=8)
-    # The below will error, as there is no such parameter for LogLocator 
+    # The below will error, as there is no such parameter for LogLocator
     # named foo
-    # loc.set_params(foo='bar')
+    # loc.set_params(foo='bar')