Give users autocomplete ingredient suggestions

Create an extended DialogFragment that utilizes AutoCompleteTextView to
give suggestions to the user as he/she is adding an ingredient.

Todo: Read ingredient suggestions from a file rather than hard-coding
values in the DialogFragment.
Merge branch 'master' of github.com:trance-with-me/RecipeComposer

Conflicts:
	RecipeComposer/src/main/java/creations/icebox/recipecomposer/IngredientsFragment.java
	RecipeComposer/src/main/res/values/strings.xml