added HTMLImports
removed client brick information from Brick; moved maintainer from Brick to module level
implemented load promise wrapper
implemented loading of bricks via HTML imports; added html attribute to Brick
ported URL and Photo brick to HTML component architecture
moved dynamic loading of stylesheets in display post template to client side
disabled Pyng
Merge branch 'master' into import-brick

Conflicts:
	README.md
	wall/res/static/util.js
Merge pull request #128 from NoyaInRain/import-brick

Import brick