(fix #2097) PGF: get fonts from fc-list, use builtin fonts for tests
Don't close figure if context and apply_rcparams are both set. Fixes #2890.
TST: __spec__ (an import-related variable for modules) was added in python 3.4. Need to exclude in test_override_builtins.
Merge pull request #2981 from cimarronm/test_override_builtins_spec_variable

TST: __spec__ (an import-related variable for modules) was added in pyth...
DOC/BUG : fixed sphinx markup

 - issue introduced in #2836
 - closes #2982
Merge pull request #2983 from tacaswell/doc_format_fix

DOC/BUG : fixed sphinx markup
Merge pull request #2914 from astrofrog/fix-plot-directive-rcparams

Don't close figure if context and apply_rcparams are both set.
Allow :context: directive to take 'reset' option. Fixes #2892.
Added What's New entry for :context: reset
Merge pull request #2913 from astrofrog/reset-context-plot-directive

Allow :context: directive to take 'reset' option. Fixes #2892.
small error in install faq
Merge pull request #2829 from pwuertz/fix_2097

(fix #2097) PGF: get fonts from fc-list, use builtin fonts for tests
Merge pull request #2984 from fariza/doc_error_install_faq

small error in install faq
add 'buttons' parameter in LassoSelector and SpanSelector
pull out a tentative base class & remove spurious disconnect failure