Modified getSubcategory to return subcategory_id
Added deleteBookmarks method in BookmarkManager and modified
toggleBookmark input from species_id to scientific_name
Fixed the bug inside SearchElementRetriever caused by usage of single
String[] object when added into subcategory and description list.
Initialized new String[] object every iteration.
Added two extra methods for BookmarkManager for testing purposes only.
Added a third extra method in BookmarkManager for testing purpose.
Cleaned plant class, plantdataretriever and searchelementretriever
Merge branch 'data' of https://github.com/ironlulu/FloraSG into data
Wrote a unit test case for plantDataRetriever + DB update
Added unit testing class BookmarkManagerTest
Merge remote-tracking branch 'origin/data'

Conflicts:
	floraSG/bin/classes.dex
	floraSG/bin/classes/com/example/florasg/GUI/TabMainActivity.class

floraSG/bin/classes/com/example/florasg/GUI/profileGUI/BookmarkActivity.
class

floraSG/bin/classes/com/example/florasg/GUI/searchGUI/SearchActivity.cla
ss

floraSG/bin/classes/com/example/florasg/GUI/searchGUI/SearchResultActivi
ty.class
	floraSG/bin/classes/com/example/florasg/R$drawable.class
	floraSG/bin/classes/com/example/florasg/R$id.class
	floraSG/bin/classes/com/example/florasg/R$layout.class
	floraSG/bin/classes/com/example/florasg/R$menu.class
	floraSG/bin/classes/com/example/florasg/R$string.class
	floraSG/bin/classes/com/example/florasg/R$style.class
	floraSG/bin/classes/com/example/florasg/R$xml.class

floraSG/bin/dexedLibs/android-support-v4-27c337a342c41022eed0f0105e2cd28
d.jar

floraSG/bin/dexedLibs/android-support-v4-6270bd8b15ece582cb6e7c837f58dad
c.jar
	floraSG/bin/floraSG.apk
	floraSG/bin/resources.ap_
	floraSG/gen/com/example/florasg/R.java
Modified BookmarkManager
Merge remote-tracking branch 'origin/data'
modify search page
commit before push
delete images
merge with master