adding REQUIREMENTS
Fixed incorrect reference to variable 'feat' instead of 'feature'
set plugin menu/action objectName
styling disclaimer
Some fixes to get the snippet code working.
Added an explanation.
Merge pull request #191 from akbargumbira/master

Some fixes to get the snippet code working
Update plugins.rst

fix for #156
Merge branch 'master' of https://github.com/qgis/QGIS-Documentation into module_10_plugins