context 7.x-3.0-beta1

This was a good issue clean scrub for the 7x branch. Mostly bug fixes, etc. Thanks to all those that helped debug and patch.

• #951034 by jrguitar21 - Fix E_STRICT warnings
• #1010924 via roper. - Minor typo in context_layouts.module
• #978024 by Steven Jones - Undeclared dependency on menu.module
• #1007334 by q0rban, tekante - References to admin/build/modules in READMEs
• #966768 by tekante - Undefined property: stdClass:: in _block_get_renderable_array when saving a configured context
• Fixed a bunch of failing unit tests
• #1047798 by tekante - Conditions - node taxonomy reference
• #345050 by mikegfx, acouch and many others - handle titles for custom blocks and title overrides form block.module
• #1040248 by himerus, tekante - Theme reaction for classes_array should be in preprocess_html
• Git migration!!!
• #1005190 by tekante: Fix show row weights
• #952166 Repopulate form on validation error
• #996426 by tekante: Context inline editor removes empty blocks.