Revert "feat(): 12.0.0-alpha.9"
Revert "feat(): 12.0.0-alpha.9"

This reverts commit af6c9d19ebfd7cc8f3fe94fa8a861a4f628007f4.

# Conflicts:
#	demo/app/main-page.ts
#	src/package.json
#	src/pager.android.ts
#	src/pager.common.ts
#	src/pager.ios.ts

triniwiz/nativescript-pager,triniwiz/nativescript-pager,triniwiz/nativescript-pager,triniwiz/nativescript-pager,triniwiz/nativescript-pager