Update Japanese translation

Author: crazymaster

build/shared/lib/languages/PDE_ja.properties

@@ -257,7 +257,7 @@ create_font.character_selector = 文字選択
 create_font.character_selector.label = Default characters will include most bitmaps for Mac OS\nand Windows Latin scripts. Including all characters may\nrequire large amounts of memory for all of the bitmaps.\nFor greater control, you can select specific Unicode blocks.
 create_font.default_characters = デフォルトの文字
 create_font.all_characters = すべての文字
-create_font.specific_unicode = Specific Unicode Blocks
+create_font.specific_unicode = 特定のUnicodeブロック
 create_font.filename = ファイル名
 
 # Color Selector (Frame)
@@ -490,9 +490,9 @@ contrib.all = すべて
 contrib.undo = 元に戻す
 contrib.remove = 削除
 contrib.install = インストール
-contrib.progress.installing = Installing
-contrib.progress.starting = Starting
-contrib.progress.downloading = Downloading
+contrib.progress.installing = インストール中
+contrib.progress.starting = 開始中
+contrib.progress.downloading = ダウンロード中
 contrib.download_error = An error occured while downloading the contribution.
 contrib.unsupported_operating_system = Your operating system does not appear to be supported. You should visit the %s\'s library for more info.
 contrib.category.3d = 3D