adding model Crontimestamp and changing models of 0003 migration
cron timestamp migration
pma updates on cron jobs
m2m save function on collection
calculate new stats on addition of videos to collection
adding post remove
post save for activities and resolving cyclic imports
Merge branch 'social_cron_job' of https://github.com/digitalgreenorg/dg into social_cron_job

Conflicts:
	social_website/models.py
	social_website/post_save_funcs.py
when adding a collection activity check whether it contains video or not
Merge remote-tracking branch 'origin/social_live' into social_cron_job

Conflicts:
	social_website/models.py
Village activity , Collection Activity, Video Added To the Collection
added website sync script
Merge branch 'social_cron_job' of https://github.com/digitalgreenorg/dg into social_cron_job
Milestone and Village Cron Job
running the job for all partners
added delete handling
Merge branch 'social_cron_job' of https://github.com/digitalgreenorg/dg into social_cron_job
Logging milestone and village added
format modified for logging the information
removed pap, added delete functionality + time update at the end of script