Override progress bar on platforms with segmented progress bars
Override progress bar on platforms with segmented progress bars

Windows & WindowsXP style have a problem with displaying the block progress.
Add a custom stylesheet as workaround, but only when one of those renderers is active,
otherwise leave the theme alone (issue #1071).

joroob/reddcoin,coinkeeper/2015-06-22_19-10_cannacoin,ahmedbodi/poscoin,Cannacoin-Project/Cannacoin,coinkeeper/2015-06-22_19-10_cannacoin,Cannacoin-Project/Cannacoin,joroob/reddcoin,ahmedbodi/poscoin,reddink/reddcoin,bmp02050/ReddcoinUpdates,coinkeeper/2015-06-22_18-46_reddcoin,reddcoin-project/reddcoin,reddink/reddcoin,coinkeeper/2015-06-22_19-10_cannacoin,bmp02050/ReddcoinUpdates,ahmedbodi/poscoin,coinkeeper/2015-06-22_18-46_reddcoin,reddink/reddcoin,coinkeeper/2015-06-22_18-46_reddcoin,reddcoin-project/reddcoin,Cannacoin-Project/Cannacoin,coinkeeper/2015-06-22_18-46_reddcoin,joroob/reddcoin,Cannacoin-Project/Cannacoin,bmp02050/ReddcoinUpdates,reddcoin-project/reddcoin,ahmedbodi/poscoin,coinkeeper/2015-06-22_19-10_cannacoin,joroob/reddcoin,reddcoin-project/reddcoin,ahmedbodi/poscoin,Cannacoin-Project/Cannacoin,coinkeeper/2015-06-22_19-10_cannacoin,reddink/reddcoin,reddcoin-project/reddcoin,joroob/reddcoin,coinkeeper/2015-06-22_18-46_reddcoin,reddcoin-project/reddcoin,bmp02050/ReddcoinUpdates,bmp02050/ReddcoinUpdates,reddink/reddcoin