MAINT: also remove lmfit.ui from setup.py

1.0.0 release notes

Merge pull request lmfit#611 from lmfit/v0.9.15

announce end of support for Python 2.7

Merge pull request lmfit#611 from lmfit/v0.9.15

announce end of support for Python 2.7

Merge pull request lmfit#586 from reneeotten/nan_policy_message

Nan policy message

Merge pull request lmfit#582 from lmfit/asteval_maxtime

remove deprecated max_time from asteval.Interpreter() creation

Merge pull request lmfit#548 from lmfit/html_repr

alternative html_repr

Merge pull request lmfit#520 from reneeotten/pytest

test-suite: use pytest features, improve coverage, fix mistakes

Merge pull request lmfit#519 from reneeotten/PR512

updates to complement PR512

use inspect.getfullargspec for Python3