small corrections to MakeFile
small corrections to MakeFile

the rm default_app should be a mv to rename it to app... I think.

Mingling94/Sia-UI,Mingling94/Sia-UI,Mingling94/New-Sia-UI,bitspill/Sia-UI,bdevelle/dapptest,pmknutsen/Sia-UI,NebulousLabs/New-Sia-UI,bitspill/Sia-UI,rivine/rivine-UI,pmknutsen/Sia-UI,bdevelle/dapptest,pmknutsen/Sia-UI,Mingling94/Sia-UI,NebulousLabs/Sia-UI,NebulousLabs/Sia-UI,NebulousLabs/New-Sia-UI,bdevelle/dapptest,rivine/rivine-UI,rivine/rivine-UI,NebulousLabs/Sia-UI,bitspill/Sia-UI,Mingling94/New-Sia-UI,Mingling94/New-Sia-UI,NebulousLabs/New-Sia-UI