Prefixed all calls to plyr functions with the plyr:: namespace. The list of plyr functions that were found in the ggplo2 codebase and modified is:

 * aaply        [1 occurrences]
 * alply        [9 occurrences : 3 files]
 * colwise     [3 occurrences : 3 files]
 * as.quoted    [1 occurence]
 * compact      [18 occurences : 13 files]
 * daply        [1 occurrence]
 * defaults    [a lot]
 * dlply        [1 occurrence]
 * failwith    [1 occurrence]
 * l_ply        [3 occurrences : 3 files]
 * laply        [9 occurrences : 3 files]
 * ldply        [7 occurrences : 4 files]
 * llply        [39 occurrences : 11 files]
 * rbind.fill   [2 occurrences : 2 files]
 * rlply        [1 occurrence]