Merge pull request #11 from piaw/master

Do reports Screen.
Merge pull request #12 from piaw/master

fix DB errors on startup. Also, provide keyboard in appropriate places in the UI.
Merge pull request #13 from piaw/master

Refactor ShowKeyboard and HideKeyboard into UIUtils
showing (food, weight) nutrition values
Merge remote-tracking branch 'origin/master'

Conflicts:
	NutritionTracker/NutritionTracker/app/src/main/java/net/tigerparents/nut/DataBaseHelper.java
Merge pull request #14 from piaw/master

Fixed some layout issues
Merge branch 'master' of https://github.com/xiaoqin2012/nutrition1
Moved files around
Fixed NutritionData
Try to do ShowReports
Fixed Show Reports
Merge pull request #15 from piaw/master

Add activity to ask user for export file name
showing (food, weight) nutrition values
Merge branch 'master' of https://github.com/xiaoqin2012/nutrition1
Merge pull request #16 from piaw/master

export data
showing (food, weight) nutrition values
Merge remote-tracking branch 'origin/master'
Merge pull request #7 from xiaoqin2012/master

merge from xiaoqin