Making it work with Brackets 0.44

TODO:
- Quick Edit functionality
- Live Preview update on code change
Making it work with Brackets 0.44

using InMemoryFile ( as in @kidwm solution ) instead creating a temp.css
Update README.md
Update README.md
Update README.md
Update README.md
adding code to not wipe existing media-queries.css. still need to write code to refresh state from existing css file
fix to refresh css rules for an element when switching between queries
positioning inline mark label to the right
updated code so that updateInlineWidget updates existing elements instead of recreating them
issue 13 - getting the selector dropdown to contain correct values and tie rules to each selector appropriately
documentation and code cleanup
refactored code to generated code editor contents
updating behviour of selector drop down when switching queries so it works as expected. if selector no longer exists when switching then the rules will update to the first selector that is available otherwise it remains unchanged
rejecting inline editor if tag cannot be determined. results in message displayed to user as per normal inline editor
issue #18: commented out onClosed clean up for the time being to eliminate race condition
added check to inline editor to make sure the document is html
updated check for tag to return null
added check to make sure selection is not more than one line when opening inline editor
adding fix for elements that do not have a css already defined (Issue #19)