add new libraries xlsjs and xlsx
Started on uploading catalog components.
Added parser for excel files.
Added catalog api service.
Catalog server controller - api to update and retrieve catalog.
Fixed tests.
Added search/filter on catalog.
add sample data set
initial commit for catalog List view
populate the table with fake data
populate table with fake data
Different versions of searching.
Fallback to original code, without the use of any library.
Merge branch 'CatalogXlsParser' of https://github.com/nghiank/ComOn into develop