Merge pull request #16 from sowbug/master

Style fixes.
v1.0.6 move keystretching + pdf generation to background
v1.0.7
pdf document now readable with Windows 8 pdf viewer + some android viewers
v1.0.7
pdf document now readable with Windows 8 pdf viewer + some android viewers
v1.1.0
Bip38 support
translations to de, es, it, pt, ru, zh
ability to change language in options
camera fixes (landscape mode)
number grouping for large numbers
bugfix when sharing PDF with Samsung Email App
default unit mBtc
allow encrypted backup verification through clipboard in addition to qr code.
v1.1.0
v1.1.1
scanning a qr code will no longer overrule manually entered amount.
rare crash fixes.
v1.1.2
regression fix for password-reentry