Issues with file encodings not UTF-8

[DaKaZ]

I am wondering if it is possible to make all your javascript encodings UTF-8? When using this wonderful plugin with a Rails app via https://github.com/mauriciopasquier/jquery-countdown-rails asset precompiling fails for non UTF-8 encoded files. It would be ideal if the files just all had common encoding instead of the randomness below.

$ file jquery.*

jquery.countdown-ar.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-bg.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-bn.js:    Little-endian UTF-16 Unicode text, with CRLF line terminators
jquery.countdown-bs.js:    ASCII text
jquery.countdown-ca.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-cs.js:    UTF-8 Unicode text
jquery.countdown-cy.js:    UTF-8 Unicode (with BOM) text, with CR line terminators
jquery.countdown-da.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-de.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-el.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-es.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-et.js:    UTF-8 Unicode text
jquery.countdown-fa.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-fi.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-fr.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-gl.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-gu.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-he.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-hr.js:    ASCII text
jquery.countdown-hu.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-hy.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-id.js:    ASCII text
jquery.countdown-it.js:    ASCII text
jquery.countdown-ja.js:    UTF-8 Unicode (with BOM) text
jquery.countdown.js:       ASCII text
jquery.countdown-kn.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-ko.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-lt.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-lv.js:    UTF-8 Unicode text
jquery.countdown-ml.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-ms.js:    ASCII text
jquery.countdown-my.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-nb.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-nl.js:    ASCII text
jquery.countdown-pl.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-pt-BR.js: ISO-8859 text
jquery.countdown-ro.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-ru.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-sk.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-sl.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-sq.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-sr.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-sr-SR.js: UTF-8 Unicode (with BOM) text
jquery.countdown-sv.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-th.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-tr.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-uk.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-ur.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-uz.js:    UTF-8 Unicode (with BOM) text
jquery.countdown-vi.js:    UTF-8 Unicode text
jquery.countdown-zh-CN.js: UTF-8 Unicode (with BOM) text
jquery.countdown-zh-TW.js: UTF-8 Unicode (with BOM) text
jquery.plugin.js:          ASCII text