BROKEN: Insert Media button inline with the text field

Doesn't do much except popup a menu with icons.

Conflicts:
	src/com/ichi2/anki/CardEditor.java
Refactor FieldEditText into a standalone class

Conflicts:
	src/com/ichi2/anki/CardEditor.java
Add MM editor popupmenu to fact edit fields

Conflicts:
	src/com/ichi2/anki/CardEditor.java
Pushing media button launches multimedia fact editor

Disabled the popupmenu for now.
disable new multimedia button
Merge pull request #351 from timrae/mergeMultimediaEditor

Merge multimedia editor