qt: use deleteLater to remove send entries
qt: use deleteLater to remove send entries

Use deleteLater() instead of delete, as it is not allowed
to delete widgets directly in an event handler.
Should solve the MacOSX random crashes on send with coincontrol.

Rebased-From: 6c98cca9e47ddb9c786cd3f0445175c378515e0d

kryptokredyt/ProjektZespolowyCoin,shadowoneau/ozcoin,zemrys/vertcoin,Cancercoin/Cancercoin,greencoin-dev/greencoin-dev,bitgoldcoin-project/bitgoldcoin,Rav3nPL/doubloons-08,razor-coin/razor,Ziftr/litecoin,wekuiz/wekoin,Coinfigli/coinfigli,novaexchange/EAC,icook/vertcoin,Tetcoin/tetcoin,novaexchange/EAC,Electronic-Gulden-Foundation/egulden,coinkeeper/2015-04-19_21-20_litecoindark,zemrys/vertcoin,netswift/vertcoin,scamcoinz/scamcoin,micryon/GPUcoin,Litecoindark/LTCD,IlfirinIlfirin/shavercoin,ronpaulcoin/ronpaulcoin,Dajackal/Ronpaulcoin,CrimeaCoin/crimeacoin,okinc/litecoin,chrisfranko/aiden,koharjidan/litecoin,Dajackal/Ronpaulcoin,ANCompany/birdcoin-dev,degenorate/Deftcoin,icook/vertcoin,netswift/vertcoin,brightcoin/brightcoin,marscoin/marscoin,scamcoinz/scamcoin,Tetcoin/tetcoin,ohac/sha1coin,chrisfranko/aiden,shapiroisme/datadollar,Coinfigli/coinfigli,razor-coin/razor,wekuiz/wekoin,KaSt/equikoin,zemrys/vertcoin,coinkeeper/2015-06-22_18-51_vertcoin,oklink-dev/litecoin_block,gwangjin2/gwangcoin-core,dakk/soundcoin,Checkcoin/checkcoin,coinkeeper/2015-04-19_21-20_litecoindark,kryptokredyt/ProjektZespolowyCoin,okinc/litecoin,bitgoldcoin-project/bitgoldcoin,Dajackal/Ronpaulcoin,shadowoneau/ozcoin,shurcoin/shurcoin,jiffe/cosinecoin,brishtiteveja/sherlockholmescoin,coinkeeper/2015-06-22_18-46_razor,shadowoneau/ozcoin,shurcoin/shurcoin,cryptcoins/cryptcoin,Ziftr/litecoin,chrisfranko/aiden,vertcoin/eyeglass,greencoin-dev/greencoin-dev,coinkeeper/2015-06-22_18-46_razor,kryptokredyt/ProjektZespolowyCoin,CrimeaCoin/crimeacoin,zemrys/vertcoin,shapiroisme/datadollar,alexandrcoin/vertcoin,IlfirinIlfirin/shavercoin,degenorate/Deftcoin,CrimeaCoin/crimeacoin,ccoin-project/ccoin,kryptokredyt/ProjektZespolowyCoin,coinkeeper/2015-06-22_18-46_razor,marscoin/marscoin,bitgoldcoin-project/bitgoldcoin,zzkt/solarcoin,jiffe/cosinecoin,coinkeeper/2015-06-22_19-13_florincoin,united-scrypt-coin-project/unitedscryptcoin,novaexchange/EAC,cryptcoins/cryptcoin,mrtexaznl/mediterraneancoin,koharjidan/litecoin,mrtexaznl/mediterraneancoin,gwangjin2/gwangcoin-core,shadowoneau/ozcoin,bitgoldcoin-project/bitgoldcoin,degenorate/Deftcoin,okinc/litecoin,neutrinofoundation/neutrino-digital-currency,Electronic-Gulden-Foundation/egulden,KaSt/equikoin,IlfirinCano/shavercoin,okinc/litecoin,Checkcoin/checkcoin,novaexchange/EAC,okinc/litecoin,brishtiteveja/sherlockholmescoin,richo/dongcoin,netswift/vertcoin,ronpaulcoin/ronpaulcoin,brightcoin/brightcoin,privatecoin/privatecoin,netswift/vertcoin,bootycoin-project/bootycoin,privatecoin/privatecoin,coinkeeper/2015-06-22_18-46_razor,Czarcoin/czarcoin,tensaix2j/bananacoin,ohac/sha1coin,ronpaulcoin/ronpaulcoin,Rav3nPL/doubloons-08,mooncoin-project/mooncoin-landann,richo/dongcoin,KaSt/equikoin,plankton12345/litecoin,ohac/sha1coin,KaSt/equikoin,plankton12345/litecoin,coinkeeper/2015-06-22_18-46_razor,koharjidan/litecoin,IlfirinIlfirin/shavercoin,IlfirinCano/shavercoin,DrCrypto/darkcoin,tensaix2j/bananacoin,Electronic-Gulden-Foundation/egulden,degenorate/Deftcoin,coinkeeper/2015-04-19_21-20_litecoindark,coinkeeper/2015-04-19_21-20_litecoindark,chrisfranko/aiden,richo/dongcoin,zebrains/Blotter,gwangjin2/gwangcoin-core,coinkeeper/2015-06-22_18-51_vertcoin,Litecoindark/LTCD,brishtiteveja/sherlockholmescoin,brishtiteveja/sherlockholmescoin,tensaix2j/bananacoin,zebrains/Blotter,brightcoin/brightcoin,icook/vertcoin,united-scrypt-coin-project/unitedscryptcoin,Ziftr/litecoin,privatecoin/privatecoin,Czarcoin/czarcoin,wekuiz/wekoin,DrCrypto/darkcoin,vertcoin/eyeglass,dakk/soundcoin,ohac/sha1coin,Rav3nPL/doubloons-08,greencoin-dev/greencoin-dev,greencoin-dev/greencoin-dev,coinkeeper/2015-06-22_19-13_florincoin,plankton12345/litecoin,shapiroisme/datadollar,stamhe/litecoin,degenorate/Deftcoin,plankton12345/litecoin,Litecoindark/LTCD,Litecoindark/LTCD,wekuiz/wekoin,scamcoinz/scamcoin,razor-coin/razor,zzkt/solarcoin,stamhe/litecoin,ANCompany/birdcoin-dev,koharjidan/litecoin,Electronic-Gulden-Foundation/egulden,coinkeeper/2015-04-19_21-20_litecoindark,brishtiteveja/sherlockholmescoin,bootycoin-project/bootycoin,mooncoin-project/mooncoin-landann,united-scrypt-coin-project/unitedscryptcoin,stamhe/litecoin,oklink-dev/litecoin_block,mooncoin-project/mooncoin-landann,coinkeeper/2015-06-22_19-13_florincoin,CrimeaCoin/crimeacoin,koharjidan/litecoin,razor-coin/razor,tensaix2j/bananacoin,Coinfigli/coinfigli,netswift/vertcoin,Ziftr/litecoin,mooncoin-project/mooncoin-landann,mrtexaznl/mediterraneancoin,ANCompany/birdcoin-dev,shapiroisme/datadollar,privatecoin/privatecoin,earthcoinproject/earthcoin,Rav3nPL/doubloons-08,neutrinofoundation/neutrino-digital-currency,zemrys/vertcoin,IlfirinCano/shavercoin,vertcoin/eyeglass,jiffe/cosinecoin,stamhe/litecoin,coinkeeper/2015-06-22_19-13_florincoin,earthcoinproject/earthcoin,zebrains/Blotter,ronpaulcoin/ronpaulcoin,IlfirinCano/shavercoin,zzkt/solarcoin,marscoin/marscoin,mooncoin-project/mooncoin-landann,zzkt/solarcoin,bootycoin-project/bootycoin,Electronic-Gulden-Foundation/egulden,alexandrcoin/vertcoin,cryp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