Bugfix: proposal close date validation.
Bugfix: proposal close date validation.

juliagra/loomio,juliagra/DBCloomio,aca13jmf/loomio,labhackercd/loomio,digideskio/loomio,loomio/loomio,isomerase/loomio,isomerase/loomio,sicambria/loomio,juliagra/DBCloomio,kimihito/loomio,annewchen/loomio,Collabforge/site-collabio,gvalerin/loomio,aca13jmf/loomio,Collabforge/site-collabio,loomio/loomio,loomio/loomio,doomergithub/loomio,isomerase/loomio,HadoDokis/loomio,kimihito/loomio,sicambria/loomio,HadoDokis/loomio,FSFTN/Loomio,labhackercd/loomio,codingnutty/loomio,wangjun/loomio,tachyons/loomio,loomio/loomio,gvalerin/loomio,Collabforge/site-collabio,sicambria/loomio,mlarghydracept/loomio,piratas-ar/loomio,mhjb/loomio,codingnutty/loomio,mhjb/loomio,mlarghydracept/loomio,Collabforge/site-collabio,wangjun/loomio,aca13jmf/loomio,labhackercd/loomio,tachyons/loomio,annewchen/loomio,HadoDokis/loomio,tachyons/loomio,juliagra/loomio,juliagra/loomio,FSFTN/Loomio,annewchen/loomio,sicambria/loomio,digideskio/loomio,labhackercd/loomio,mlarghydracept/loomio,juliagra/DBCloomio,mhjb/loomio,mhjb/loomio,digideskio/loomio,doomergithub/loomio,wangjun/loomio,gvalerin/loomio,doomergithub/loomio,piratas-ar/loomio,kimihito/loomio,FSFTN/Loomio,piratas-ar/loomio,HadoDokis/loomio,FSFTN/Loomio,tachyons/loomio,codingnutty/loomio,piratas-ar/loomio,isomerase/loomio