Expose ax.yaxis.labelpad and ax.xaxis.labelpad to the rc file

[saullocastro]

While trying to change the gap between the axis title and the tick labels I found this thread:

http://matplotlib.1069221.n5.nabble.com/Distance-between-axis-and-axis-label-td1181.html

Where it is explained that using:

ax.xaxis.labelpad
ax.yaxis.labelpad

One can adjust this gap. It works perfectly, but the problem is that I have to add some lines in everycode I need this adjustment. I tried to include in my maplotlibrc file these two lines and it gives:

Bad key "ax.yaxis.labelpad" on line 247 in
...\.matplotlib\matplotlibrc.
You probably need to get an updated matplotlibrc file from
http://matplotlib.sf.net/_static/matplotlibrc or from the matplotlib source
distribution

[jgosmann]

There is PR #3096 implementing a labelpad rcParam.

[tacaswell]

Merged as b2bd5db

[Tillsten]

@tacaswell Sorry, is this in 1.4.3?

[tacaswell]

@Tillsten no, and I just noticed this went in with out proper documentation.

Re-opening as a reminder to add a line to Whats new.