Updated MainFragment to take photo or get image from gallery and then pass it to the imagevieweracrtivity
Added imageName textView + method and button, changed shareImage code, instantiated Image object in ImageViewerFragment
Updated App to correctly implement Halftoning and converting the image correctly.
Grayscale filter still needs to be created and other minor improvements needed
Implemented Grayscale filter correctly and improved some code.
Halftone could be improved by applying grayscale before applying Halftone and also adding a thread to the convert() methods
added radio-button check for No filter
Merge branch 'Sprint_1' of https://github.com/bentheobald10/HalftoneApp into Sprint_1

Conflicts:
	src/com/monash/halftone/view/ImageViewerFragment.java
Removed  rename button, added permission, changed various code in ImageViewerFragment.java
Fixed halftoning.java to allow saving and sharing
Changed name textview code
changed caption positions
Captions
Created an AsyncFilter class that applies the filter using an AsyncTask
Updated the README. Only the Implemented and Bugs fields need to be finished
CaptionFragment dialog added
Updated the Caption Dialog to have a text box to ask for text. Also updated the positioning of the caption
Added simple error checking for caption length
README from last sprint and .gitignore update