New dialogs mockups

contains
- non obstrusive normal dialogs
- obstrusive, subjects-that-matter-most query dialogs
- non obstrusive selection dialogs
Updated dialogs specs

With requested changes, and all formats
update 2 for dialogs

paddings fixed
selection dialogs replaced with inline dialogs
Update 3

font of dialog fixed to 24px light
shadow fixed to 15px and specced
Update 4

px changed to u and pt
color of dropshadows added
Merge pull request #10 from bitsandnumbers/master

New dialogs mockups