[chore]working on new card show page
[feature]add hit_count to albums to record visited times
[feature]add unfollow_album method to users
[feature]user can follow and unfollow in card page
[chore]fix bug for user to create album
[chore]refactor invite_btn_links
[feature]add remove button on card show page
[feature]user can remove my uploaded images
[chore]clean JS and CSS file based on new version
[chore]refactor create card page based on new HTML file
[chore]extract create/edit card form
[feature]creator can edit the card
Merge pull request #72 from peterzd/card_page

Card page
Merge pull request #73 from peterzd/dev

Dev