Fix: small fixes
add agreement member can see worked time

fix worked time limit, time format

fix duration conditions

fix timezones
Merge pull request #21 from tataronrails/vl/feature/worked-time

Vl/feature/worked time
fixed small issues
work history for manager
put back seed dummy data
work history table layout hide for worker
fixed issues based on review comment
fixed more issues based on review comment
resolved merge conflict