Chapter II
   Section 3. Powers. The city has all powers that the constitutions, statutes and common law of the United States and Oregon expressly or impliedly grant or allow the city, as fully as though this charter specifically enumerated each of those powers.
   Section 4. Construction. The charter shall be liberally construed so that the city may exercise fully all powers possible under this charter and under United States and Oregon law.
   Section 5. Distribution. The Oregon Constitution reserves initiative and referendum powers as to all municipal legislation to city voters. This charter vests all other city powers in the council except as the charter otherwise provides. The council has legislative, administrative and quasi-judicial authority. The council exercises legislative authority by ordinance, administrative authority by resolution, and quasi-judicial authority by order. The council may not delegate its authority to adopt ordinances.