Quickstart should have matplotlib dependencies

[vatsalparekh]

matplotlib needs libpng-devel, and as it's not in pip we need to install it explicitly. We should write it inside the quickstart

[RonnyPfannschmidt]

i just executed quick-start, and everything works - @vatsalparekh how did you run your quick-start

@psav we may need to instruct people to run a full quick-start (aka virtualenv disabled)

[mfalesni]

@RonnyPfannschmidt I wonder, can we at least do a quick package listing when running the quickstart in virtualenv to warn the user the system dependencies were updated to run a full quickstart?

[mfalesni]

Doing rpm -q $PACKAGE_1 $PACKAGE_2 ... $PACKAGE_N should be reasonably quick and returns 0 if all packages are installed

[vatsalparekh]

@RonnyPfannschmidt you might already have that package installed
I didn't run the quickstart, I did git pull and then pip install -U -r requirements.txt, and it couldn't build matplotlib

[RonnyPfannschmidt]

@mfalesni good point

@vatsalparekh when i executed the quick-start it installed all needed packages