Merge branch 'master' of https://github.com/danialfarid/angular-file-…

…upload

Fixed danialfarid#724 danialfarid#725 danialfarid#611, added IE8-9 im…

…age preview and FileReader API, added validation to ngf-src directive

Fixed danialfarid#723

Merge branch 'master' of https://github.com/danialfarid/angular-file-…

…upload

fixed empty validation

fixed danialfarid#714 danialfarid#715 danialfarid#716

fixed danialfarid#714 danialfarid#715 danialfarid#716

Merge branch 'master' of https://github.com/danialfarid/angular-file-…

…upload

Merge branch 'master' of https://github.com/danialfarid/angular-file-…

…upload

Merge branch 'master' of https://github.com/danialfarid/angular-file-…

…upload