Bug-118 Increase the version to 1.0.4
Merge pull request #46 from thomas771020/bug-118-increase-the-version-to-1.0.4

Bug-118 Increase the version to 1.0.4, r=johnhu
Increase the version to 1.0.5
Merge pull request #48 from thomas771020/Bug-112-increase-the-version-to-1.0.5

Increase the version to 1.0.5, r=johnhu
Bug-4: add pronunciation support to wikicards
Merge pull request #49 from john-hu/bug-4-pronunciation

Bug-4: add pronunciation support to wikicards, r=thomas.
Bug-121: use content description to describe the button which using
icon font as its icon.
Merge pull request #50 from john-hu/bug-121-content-description

Bug-121: use content description to describe the button which using, r=thomas
Bug-116 Make MainActivity can select different category.