Small corrections and improvements to the  "\guide\architecture.rst" file
Added title font size support for the Popup widget. Originally suggested by user engicri on the kivy forums
Added version added info for Popup widget title font size change.
Merge pull request #1008 from Zen-CODE/Doc_English_Improvements_7

Doc corrections to "\guide\architecture.rst"
Corrections and improvements to '/guide2/basic.rst'
Merge pull request #1005 from josephlee021/master

Add font size support for the Popup widget title.
Merge pull request #1012 from Zen-CODE/Doc_English_Improvements_8

Updates to '/guide2/basic.rst'
Small corrections and improvements to 'guide2\config.rst'
Merge pull request #1013 from Zen-CODE/Doc_English_Improvements_9

Small corrections and improvements to 'guide2\config.rst'
Force Context.gc() when deallocating some gl resources. closes #1014
fix 3Drendering example glsl code.  was missing precision definition