fix($ionNavView): prevent read property 'name' of null
fix($ionNavView): prevent read property 'name' of null

Closes #1587

EricCheung3/ionic,xzyfer/ionic,csbz17027/ionic,lutrosis81/manup-app,uidoyen/ionic,awhedbee22/ionic,brant-hwang/ionic,cbmeeks/ionic,celsoyh/ionic,felquis/ionic,Flllexa/ionic,uidoyen/ionic,AlphaStaxLLC/ionic,edwardchor/ionic,r14r/fork_ionic_master,pargatsingh-webklabs/ionic,jango2015/ionic,puurinternet/ionic,freedomdebug/ionic,MarcBT/ionic,envistaInteractive/ionic,DiZyStudio/ionic,sloops77/ionic,chrisbautista/ionic,treejames/ionic,open-anesthesia/ionic,michaellourenco/ionic,JackieLin/ionic,jtomaszewski/ionic,javascriptit/ionic,mingming1986/ionic,angrilove/ionic,fanhaich/ionic,100goals/ionic,CNVCrew/ionic,amitparrikar/ionic,fangjing828/ionic,kylezhang/ionic,JackieLin/ionic,oneillsp96/ionic,zittix/ionic,AmberWhiteSky/ionic,johnli388/ionic,JoeyAndres/meteoric-sass,sthashree/ionic,wkrueger/ionic,yurtaev/ionic,NandoKstroNet/ionic,jasdeepkhalsa/ionic,yurtaev/ionic,Gregcop1/ionic,urish/ionic,trevorgrayson/ionic,GeorgeMe/ionic,janij/ionic,SobolevLexa/ionic,MeteorPackaging/ionic,agyrafa/ionic,SobolevLexa/ionic,htc550605125/ionic,csbz17027/ionic,JackieLin/ionic,leeric92/ionic,chrisbautista/ionic,guaerguagua/ionic,leerduo/ionic,ralic/ionic,Kryz/ionic,100goals/ionic,lewisl9029/ionic,thiagofelix/ionic,htc550605125/ionic,yanzhihong23/ionic-nono,taraszerebecki/ionic,jango2015/ionic,thebigbrain/ionic,javascriptit/ionic,qzapaia/ionic,r14r-work/fork_ionic,5amfung/ionic,leejeap/ionic,vjrantal/ionic,bewebltd/ionic,asfandiyark7/ionic,r14r-work/fork_ionic_master,jtomaszewski/ionic,zhonggaoyong/ionic,GhostGroup/ionic,uidoyen/ionic,zhonggaoyong/ionic,timtimUp/ionic,r14r-work/fork_ionic_master,954053260/ionic,agyrafa/ionic,buiphu/ionic,gyx8899/ionic,nelsonsozinho/ionic,daew823/ionic,angrilove/ionic,femotizo/ionic,MJefferson/ionic,eric-stanley/ionic,ralic/ionic,leobetosouza/ionic,sloops77/ionic,felipealbuquerq/ionic,lutrosis81/manup-app,beauby/ionic,oneillsp96/ionic,ptarjan/ionic,thiagofelix/ionic,cnbin/ionic,microlv/ionic,jgw96/ionic,ihongcn/ionic,ctetreault/ionic,caiiiycuk/ionic,timtimUp/ionic,TakayukiSakai/ionic,lewisl9029/ionic,freedomdebug/ionic,asfandiyark7/ionic,Urigo/meteor-ionic,r14r-work/fork_ionic_master,gyx8899/ionic,openbizgit/ionic,brant-hwang/ionic,javascriptit/ionic,vjrantal/ionic,willshen/ionic,Testoni/ionic,mingming1986/ionic,fjzdjd/ionic,huangsen0912/ionic,AlphaStaxLLC/ionic,awhedbee22/ionic,youprofit/ionic,zhengqiangzi/ionic,ihongcn/ionic,leejeap/ionic,Tetpay/ionic,GeorgeMe/ionic,blueElix/ionic,LawrenceHan/ionic,glustful/ionic,zhengqiangzi/ionic,edparsons/ionic,guaerguagua/ionic,brant-hwang/ionic,jgw96/ionic,GeorgeMe/ionic,urish/ionic,contigo/ionic,jgw96/ionic,cleor41/meteor-ionic,ihongcn/ionic,open-anesthesia/ionic,LawrenceHan/ionic,Xeeshan94/ionic,RodrigoIbarraSanchez/ionic,envistaInteractive/ionic,GeorgeMe/ionic,eyalish/ionic,edwardchor/ionic,deer-hope/ionic,youprofit/ionic,ezc/ionic,r14r/fork_ionic_master,baiwyc119/ionic,jvkops/ionic,RodrigoIbarraSanchez/ionic,ddddm/ionic,contigo/ionic,staney7/ionic,studio666/ionic,staney7/ionic,eyalish/ionic,blueElix/ionic,cesarmarinhorj/ionic,JsonChiu/ionic,xzyfer/ionic,Xeeshan94/ionic,eric-stanley/ionic,jomaf1010/ionic,leeric92/ionic,oabc124/ionic,baiwyc119/ionic,mhartington/ionic,amitparrikar/ionic,treejames/ionic,openbizgit/ionic,cnbin/ionic,agyrafa/ionic,eyalish/ionic,DiZyStudio/ionic,Drok1015/ionic,caiiiycuk/ionic,envistaInteractive/ionic,glustful/ionic,sthashree/ionic,MrChen2015/ionic,Nalinc/ionic,celsoyh/ionic,RodrigoIbarraSanchez/ionic,ViniciusAugusto/ionic,n0b0dy897/ionic,kylezhang/ionic,Niades/ionic,JackieLin/ionic,fanhaich/ionic,uus169/ionic,leerduo/ionic,nelsonsozinho/ionic,r14r/fork_ionic_master,michaellourenco/ionic,gyx8899/ionic,tkh44/ionic,javascriptit/ionic,Sourazou/login,nelsonsozinho/ionic,glustful/ionic,x303597316/ionic,microlv/ionic,VinceOPS/ionic,eaglesjava/ionic,DurgaprasadPati/ionic,uus169/ionic,Nalinc/ionic,astagi/ionic,mingming1986/ionic,caiiiycuk/ionic,anongtech/ionic,EricCheung3/ionic,vjrantal/ionic,tkh44/ionic,MeteorPackaging/ionic,zhonggaoyong/ionic,jango2015/ionic,Testoni/ionic,jianganglu/ionic,SobolevLexa/ionic,treejames/ionic,emonidi/ionic,Baskmart/ionic,VinceOPS/ionic,zyaboutblank/ionic,jeremyrussell/ionic,staney7/ionic,thiagofelix/ionic,yanzhihong23/ionic-nono,ddddm/ionic,wkrueger/ionic,Flllexa/ionic,MartinMa/ionic,TakayukiSakai/ionic,yalishizhude/ionic,zhengqiangzi/ionic,cbmeeks/ionic,xzyfer/ionic,cesarmarinhorj/ionic,taraszerebecki/ionic,contigo/ionic,yurtaev/ionic,MrChen2015/ionic,vladipus/ionic,freedomdebug/ionic,MrChen2015/ionic,SaadBinShahid/ionic,Jandersolutions/ionic,jango2015/ionic,hectoruch/ionic,csbz17027/ionic,contigo/ionic,johnli388/ionic,eaglesjava/ionic,qzapaia/ionic,felipealbuquerq/ionic,hotarzhang/ionic,x303597316/ionic,NandoKstroNet/ionic,studio666/ionic,blueElix/ionic,jasdeepkhalsa/ionic,jomaf1010/ionic,MJefferson/ionic,ViniciusAugusto/ionic,q310550690/ionic,GhostGroup/ionic,Jeremy017/ionic,jomaf1010/ionic,janglednerves/ionic,janij/ionic,deer-hope/ionic,shazhumao/ionic,brant-hwang/ionic,sthashree/ionic,abcd-ca/ionic,jgw96/ionic,fanhaich/ionic,r14r-work/fork_ionic_master,xuyuanxiang/ionic,astagi/ionic,zhiqiangli520210/ionic,studio666/ionic,rreinold/FitnessDashboard_IonicApp,MeteorPackaging/ionic,Tetpay/ionic,AmberWhiteSky/ionic,leobetosouza/ionic,leejeap/ionic,r14r-work/fork_ionic,Jeremy017/ionic,DurgaprasadPati/ionic,jvkops/ionic,Nalinc/ionic,promactkaran/ionic,mhartington/ionic,r14r-work/fork_ionic,nraboy/ionic,uus169/ionic,glustful/ionic,agyrafa/ionic,jvkops/ionic,Kryz/ionic,lazamar/ionic,ViniciusAugusto/ionic,leeric92/ionic,JsonChiu/ionic,taraszerebecki/ionic,MeteorPackaging/ionic,huangsen0912/ionic,Niades/ionic,janij/ionic,zittix/ionic,zhiqiangli520210/ionic,laispace/ionic,AppGyver/ionic,htc550605125/ionic,CNVCrew/ionic,treejames/ionic,nraboy/ionic,xuyuanxiang/ionic,jayvi/ionic,Drok1015/ionic,n0b0dy897/ionic,edwardchor/ionic,baiyanghese/ionic,leejeap/ionic,5amfung/ionic,uus169/ionic,cesarmarinhorj/ionic,Gregcop1/ionic,yalishizhude/ionic,DiZyStudio/ionic,hectoruch/ionic,emonidi/ionic,AlphaStaxLLC/ionic,MJefferson/ionic,sitacote/ionic-across,yurtaev/ionic,eaglesjava/ionic,ralic/ionic,n0b0dy897/ionic,zyaboutblank/ionic,puurinternet/ionic,jasdeepkhalsa/ionic,MarcBT/ionic,daew823/ionic,felquis/ionic,buiphu/ionic,cbmeeks/ionic,ngonzalvez/ionic,asfandiyark7/ionic,yalishizhude/ionic,hanmichael/ionic,hanmichael/ionic,jianganglu/ionic,oneillsp96/ionic,possan/ionic,CNVCrew/ionic,jamesdixon/ionic,openbizgit/ionic,thompsonemerson/ionic,Xeeshan94/ionic,trevorgrayson/ionic,PaperMonster/ionic,janglednerves/ionic,huangsen0912/ionic,jomaf1010/ionic,Baskmart/ionic,ptarjan/ionic,astagi/ionic,ahmadawais/ionic,chinakids/ionic,sitexa/ionic,edparsons/ionic,lazamar/ionic,amitparrikar/ionic,AmberWhiteSky/ionic,possan/ionic,SaadBinShahid/ionic,urish/ionic,thebigbrain/ionic,LawrenceHan/ionic,baiwyc119/ionic,huangsen0912/ionic,100goals/ionic,EricCheung3/ionic,bankonme/ionic,TakayukiSakai/ionic,fanhaich/ionic,pod4g/ionic,michaellourenco/ionic,edparsons/ionic,janglednerves/ionic,fjzdjd/ionic,Jeremy017/ionic,janglednerves/ionic,rreinold/FitnessDashboard_IonicApp,thompsonemerson/ionic,oabc124/ionic,Baskmart/ionic,jgw96/ionic,sloops77/ionic,buiphu/ionic,xuyuanxiang/ionic,deer-hope/ionic,5amfung/ionic,Niades/ionic,fangjing828/ionic,sitacote/ionic-across,promactkaran/ionic,ezc/ionic,x303597316/ionic,Niades/ionic,TakayukiSakai/ionic,yanzhihong23/ionic-nono,shazhumao/ionic,DiZyStudio/ionic,ahmadawais/ionic,MartinMa/ionic,leerduo/ionic,felipealbuquerq/ionic,xuyuanxiang/ionic,jayvi/ionic,femotizo/ionic,leerduo/ionic,zyaboutblank/ionic,EricCheung3/ionic,willshen/ionic,possan/ionic,cnbin/ionic,ctetreault/ionic,SobolevLexa/ionic,nelsonsozinho/ionic,jeremyrussell/ionic,fangjing828/ionic,youprofit/ionic,willshen/ionic,chrisbautista/ionic,caiiiycuk/ionic,RodrigoIbarraSanchez/ionic,michaellourenco/ionic,ddddm/ionic,tkh44/ionic,AndyShiTw/ionic,open-anesthesia/ionic,abcd-ca/ionic,ezc/ionic,jianganglu/ionic,ralic/ionic,janij/ionic,cleor41/meteor-ionic,Gregcop1/ionic,leeric92/ionic,zittix/ionic,chinakids/ionic,bankonme/ionic,open-anesthesia/ionic,staney7/ionic,MarcBT/ionic,oabc124/ionic,ahmadawais/ionic,AndyShiTw/ionic,awhedbee22/ionic,bewebltd/ionic,celsoyh/ionic,q310550690/ionic,baiyanghese/ionic,anongtech/ionic,WingGao/ionic,ViniciusAugusto/ionic,blueElix/ionic,vladipus/ionic,DurgaprasadPati/ionic,cnbin/ionic,jamesdixon/ionic,5amfung/ionic,cleor41/meteor-ionic,AppGyver/ionic,qzapaia/ionic,cleor41/meteor-ionic,ngonzalvez/ionic,thompsonemerson/ionic,PaperMonster/ionic,Drok1015/ionic,laispace/ionic,fjzdjd/ionic,qzapaia/ionic,amitparrikar/ionic,Jandersolutions/ionic,ptarjan/ionic,hotarzhang/ionic,NandoKstroNet/ionic,openbizgit/ionic,jvkops/ionic,954053260/ionic,MarcBT/ionic,chrisbautista/ionic,shazhumao/ionic,cesarmarinhorj/ionic,MrChen2015/ionic,shazhumao/ionic,AndyShiTw/ionic,jeremyrussell/ionic,trevorgrayson/ionic,buiphu/ionic,PaperMonster/ionic,felquis/ionic,johnli388/ionic,pargatsingh-webklabs/ionic,KholofeloMoyaba/atajo-ui,hanmichael/ionic,MartinMa/ionic,thebigbrain/ionic,SaadBinShahid/ionic,abcd-ca/ionic,GhostGroup/ionic,100goals/ionic,sitexa/ionic,jeremyrussell/ionic,eyalish/ionic,jee1mr/meteor-ionic,hectoruch/ionic,954053260/ionic,Jeremy017/ionic,jianganglu/ionic,PressReader/ionic,sitacote/ionic-across,zittix/ionic,csbz17027/ionic,gyx8899/ionic,Testoni/ionic,pod4g/ionic,VinceOPS/ionic,AlphaStaxLLC/ionic,jayvi/ionic,awhedbee22/ionic,ngonzalvez/ionic,ptarjan/ionic,mallzee/ionic,hectoruch/ionic,astagi/ionic,microlv/ionic,mallzee/ionic,KholofeloMoyaba/atajo-ui,jee1mr/meteor-ionic,tkh44/ionic,hotarzhang/ionic,anongtech/ionic,anongtech/ionic,timtimUp/ionic,possan/ionic,leobetosouza/ionic,willshen/ionic,jee1mr/meteor-ionic,bewebltd/ionic,WingGao/ionic,pargatsingh-webklabs/ionic,q310550690/ionic,leobetosouza/ionic,q310550690/ionic,wkrueger/ionic,JsonChiu/ionic,AndyShiTw/ionic,oneillsp96/ionic,Drok1015/ionic,pargatsingh-webklabs/ionic,daew823/ionic,lutrosis81/manup-app,edwardchor/ionic,sloops77/ionic,bewebltd/ionic,bankonme/ionic,jamesdixon/ionic,uidoyen/ionic,GhostGroup/ionic,deer-hope/ionic,Xeeshan94/ionic,lazamar/ionic,LawrenceHan/ionic,ihongcn/ionic,Baskmart/ionic,jtomaszewski/ionic,Kryz/ionic,rreinold/FitnessDashboard_IonicApp,kylezhang/ionic,MJefferson/ionic,rreinold/FitnessDashboard_IonicApp,ctetreault/ionic,thiagofelix/ionic,puurinternet/ionic,SaadBinShahid/ionic,femotizo/ionic,envistaInteractive/ionic,ezc/ionic,pod4g/ionic,Sourazou/login,zhiqiangli520210/ionic,fangjing828/ionic,promactkaran/ionic,lewisl9029/ionic,Nalinc/ionic,trevorgrayson/ionic,cbmeeks/ionic,AppGyver/ionic,timtimUp/ionic,jasdeepkhalsa/ionic,ngonzalvez/ionic,Testoni/ionic,hanmichael/ionic,beauby/ionic,JsonChiu/ionic,ddddm/ionic,Kryz/ionic,KholofeloMoyaba/atajo-ui,guaerguagua/ionic,sitexa/ionic,r14r/fork_ionic_master,zhiqiangli520210/ionic,kylezhang/ionic,zhengqiangzi/ionic,VinceOPS/ionic,johnli388/ionic,AmberWhiteSky/ionic,zyaboutblank/ionic,bankonme/ionic,Gregcop1/ionic,pod4g/ionic,asfandiyark7/ionic,studio666/ionic,yalishizhude/ionic,sthashree/ionic,hotarzhang/ionic,youprofit/ionic,x303597316/ionic,mhartington/ionic,chinakids/ionic,angrilove/ionic,mingming1986/ionic,thebigbrain/ionic,freedomdebug/ionic,954053260/ionic,microlv/ionic,DurgaprasadPati/ionic,PaperMonster/ionic,felipealbuquerq/ionic,yanzhihong23/ionic-nono,lutrosis81/manup-app,KholofeloMoyaba/atajo-ui,CNVCrew/ionic,angrilove/ionic,Flllexa/ionic,puurinternet/ionic,Sourazou/login,PressReader/ionic,n0b0dy897/ionic,baiwyc119/ionic,ctetreault/ionic,NandoKstroNet/ionic,emonidi/ionic,xzyfer/ionic,zhonggaoyong/ionic,femotizo/ionic,MartinMa/ionic,PressReader/ionic,jamesdixon/ionic,jee1mr/meteor-ionic,lazamar/ionic,thompsonemerson/ionic,sitexa/ionic,lewisl9029/ionic,guaerguagua/ionic,jayvi/ionic,emonidi/ionic,taraszerebecki/ionic,ahmadawais/ionic,r14r-work/fork_ionic,janglednerves/ionic,daew823/ionic,promactkaran/ionic