fixes to 'plotting' [ci disable examples]
fixes to 'plotting' [ci disable examples]

[ci disable examples]

- link 'screen units' and 'data-space units' to glossary
- make "reference documentation linked above" a link
- per Bryan in bokeh flowdock channel 2016-02-17, infinite pan/zoom
  is now default, although max and min range may still be set.

ptitjano/bokeh,philippjfr/bokeh,mindriot101/bokeh,justacec/bokeh,schoolie/bokeh,DuCorey/bokeh,ericmjl/bokeh,rs2/bokeh,Karel-van-de-Plassche/bokeh,phobson/bokeh,bokeh/bokeh,mindriot101/bokeh,philippjfr/bokeh,percyfal/bokeh,Karel-van-de-Plassche/bokeh,azjps/bokeh,phobson/bokeh,aiguofer/bokeh,timsnyder/bokeh,jakirkham/bokeh,justacec/bokeh,Karel-van-de-Plassche/bokeh,dennisobrien/bokeh,ericmjl/bokeh,ericmjl/bokeh,dennisobrien/bokeh,dennisobrien/bokeh,msarahan/bokeh,msarahan/bokeh,bokeh/bokeh,schoolie/bokeh,clairetang6/bokeh,rs2/bokeh,schoolie/bokeh,jakirkham/bokeh,KasperPRasmussen/bokeh,timsnyder/bokeh,timsnyder/bokeh,azjps/bokeh,percyfal/bokeh,aiguofer/bokeh,draperjames/bokeh,bokeh/bokeh,phobson/bokeh,ptitjano/bokeh,justacec/bokeh,DuCorey/bokeh,mindriot101/bokeh,quasiben/bokeh,Karel-van-de-Plassche/bokeh,Karel-van-de-Plassche/bokeh,draperjames/bokeh,msarahan/bokeh,percyfal/bokeh,ptitjano/bokeh,draperjames/bokeh,rs2/bokeh,stonebig/bokeh,dennisobrien/bokeh,dennisobrien/bokeh,justacec/bokeh,jakirkham/bokeh,percyfal/bokeh,azjps/bokeh,philippjfr/bokeh,timsnyder/bokeh,ptitjano/bokeh,bokeh/bokeh,draperjames/bokeh,DuCorey/bokeh,aiguofer/bokeh,KasperPRasmussen/bokeh,azjps/bokeh,aiguofer/bokeh,aavanian/bokeh,schoolie/bokeh,ericmjl/bokeh,KasperPRasmussen/bokeh,quasiben/bokeh,ptitjano/bokeh,philippjfr/bokeh,aavanian/bokeh,percyfal/bokeh,clairetang6/bokeh,DuCorey/bokeh,stonebig/bokeh,quasiben/bokeh,rs2/bokeh,ericmjl/bokeh,bokeh/bokeh,timsnyder/bokeh,stonebig/bokeh,jakirkham/bokeh,msarahan/bokeh,azjps/bokeh,stonebig/bokeh,KasperPRasmussen/bokeh,draperjames/bokeh,aiguofer/bokeh,clairetang6/bokeh,rs2/bokeh,clairetang6/bokeh,mindriot101/bokeh,aavanian/bokeh,aavanian/bokeh,aavanian/bokeh,phobson/bokeh,DuCorey/bokeh,philippjfr/bokeh,schoolie/bokeh,jakirkham/bokeh,phobson/bokeh,KasperPRasmussen/bokeh