[Kst-plot/kst] cd764e: Add printf style formatting to numbers in labels.

[Barth Netterfield]

Branch: refs/heads/master
Home: https://github.com/Kst-plot/kst
Commit: cd764efe9f8a5467543cb16ee25b2a07615bfd31
https://github.com/Kst-plot/kst/commit/cd764efe9f8a5467543cb16ee25b2a07615bfd31
Author: Barth Netterfield <***@astro.utoronto.ca>
Date: 2016-12-12 (Mon, 12 Dec 2016)

Changed paths:
M pyKst/pykst.py
M src/libkstapp/labelrenderer.cpp
M src/libkstmath/labelparser.cpp
M src/libkstmath/labelparser.h
M src/widgets/labelbuilder.cpp

Log Message:
-----------
Add printf style formatting to numbers in labels.

The syntax is, for example [INDEX:First (X1)]{%.3E}