Update .gitignore to exclude *.sublime-project and theos aggregate staging folders.
Add AppSync.sublime-project
Add more package IDs to Conflicts field (particularly insanelyi's ASU mirrors)
Remove unnecessary theos symlinks - use of the $THEOS variable is enough
Use $THEOS variable in Makefile
Remove the now-unnecessary theos submodule.
Add armv7s slice
Remove unused duplicated/symlinked source files.
Added dpkg package list checks to check if package was downloaded from an original repo. Only applies to AppSync.dylib since I don't think appinst will be mirrored all that much.