Issue 5147: Add whether to use OTF feature depending on Pango version

Add whether to use OTF feature depending on Pango version

Issue 1388 requires Pango 1.38+ for using OpenType font feature.
However, LilyDev 4.1 has Pango 1.36.8.
So it cannot compile Issue 1388.

This commit makes LilyPond can be configured
without OpenType font feature if Pango is old.
Therefore, LilyPond become to be able to compile
even by LilyDev 4.1 that has old Pango.

However, the binary that compiled by LilyDev 4.1
cannot use OpenType feature.
It is required Pango 1.38+ if you'd like to use the feature.



**** This patch requires Issue 1388 ****
https://sourceforge.net/p/testlilyissues/issues/1388/
https://codereview.appspot.com/323850043

[trueroad, 2017-06-19 15:03:55]

I've pushed to staging.

commit f75eceb27a4b630d4e898b1d93e3b051f969ff5e
Issue 5147: Add whether to use OTF feature depending on Pango version