First commit

第一次代码提交，包括：
1、启动和数据库初始化
2、拼图游戏主题
3、更换拼图item的背景
添加了android studio的插件支持
添加了游戏结束结果页的返回
apk文件不用提交

不提交.apk文件
更新了时间，修改单词了逻辑，添加了词库进度

拼图时间提高到15分钟
修改单词出现逻辑（完成拼图一次后不再出现）
添加了词库进度
词库选择界面使用新UI

词库选择界面使用新UI
Merge branch 'dev' of https://github.com/o0starshine0o/ReciteWithGame into dev

Conflicts:
	.gitignore
	.idea/gradle.xml
	.idea/vcs.xml
	app/build.gradle
	app/src/main/java/com/starshine/app/activity/BaseActivity.java
	app/src/main/java/com/starshine/app/activity/ChooseLexiconActivity.java
	app/src/main/java/com/starshine/app/activity/LaunchActivity.java
	app/src/main/java/com/starshine/app/activity/PuzzleActivity.java
	app/src/main/java/com/starshine/app/activity/ResultLoseActivity.java
	app/src/main/java/com/starshine/app/activity/ResultWinActivity.java
	app/src/main/java/com/starshine/app/adapter/LexiconAdapter.java
	app/src/main/java/com/starshine/app/adapter/PuzzleAdapter.java
	app/src/main/java/com/starshine/app/constant/DBConstant.java
	app/src/main/java/com/starshine/app/constant/IntentConstant.java
	app/src/main/java/com/starshine/app/constant/RequestConstant.java
	app/src/main/java/com/starshine/app/constant/SharedPreferencesConstant.java
	app/src/main/java/com/starshine/app/model/Lexicon.java
	app/src/main/java/com/starshine/app/model/PuzzleItem.java
	app/src/main/java/com/starshine/app/model/UserInfo.java
	app/src/main/res/layout/activity_puzzle.xml
	app/src/main/res/layout/list_item_lexicon.xml
	app/src/main/res/raw/lexicon.db
	app/src/main/res/values/strings.xml