Add Cask for Bitcasa version 1.4.1324
Merge pull request #2478 from guttertec/bitcasa

Add Cask for Bitcasa version 1.4.1324
RStudio 0.98.493
Merge pull request #2491 from sunliwen/rstudio-update

RStudio 0.98.493
Improve cash search

Ignore all the hyphens in cask title and search term

make "brew cask search" ignore case like #2461

restore search by regular expression feature