RVIC 1.1 release merge from develop

[jhamman]

RVIC 1.1 updates, still waiting on:

• [x] handling of missing values in forcing fields #53.
• [x] fix multiprocessing #50
• [x] test and/or fixes for remap==False #36
• [x] fix monthly means bug
• [x] add Stehekin RASM and PNW sample dataset to repository

[landscape-bot]

Repository health increased by 12% when pulling a9c1bdf on develop into e74b468 on master.

• 25 new problems were found (including 2 errors and 12 code smells).
• 107 problems were fixed (including 3 errors and 90 code smells).

[landscape-bot]

Repository health increased by 12% when pulling 3046e37 on develop into e74b468 on master.

• 24 new problems were found (including 2 errors and 11 code smells).
• 107 problems were fixed (including 3 errors and 90 code smells).

[landscape-bot]

Repository health increased by 12% when pulling 9452a14 on develop into e74b468 on master.

• 24 new problems were found (including 2 errors and 11 code smells).
• 107 problems were fixed (including 3 errors and 90 code smells).

[landscape-bot]

Repository health increased by 12% when pulling 6d7fec3 on develop into e74b468 on master.

• 24 new problems were found (including 2 errors and 11 code smells).
• 107 problems were fixed (including 3 errors and 90 code smells).

[landscape-bot]

Repository health increased by 12% when pulling c8fccd3 on develop into e74b468 on master.

• 30 new problems were found (including 1 error and 17 code smells).
• 107 problems were fixed (including 3 errors and 90 code smells).

[landscape-bot]

Repository health increased by 11% when pulling 16471ee on develop into e74b468 on master.

• 31 new problems were found (including 1 error and 18 code smells).
• 107 problems were fixed (including 3 errors and 90 code smells).

[bartnijssen]

Since all these have been reviewed, go ahead and merge into release yourself.

[landscape-bot]

Repository health increased by 11% when pulling d569697 on develop into 1b220c8 on master.

• 31 new problems were found (including 1 error and 18 code smells).
• 107 problems were fixed (including 3 errors and 90 code smells).

[landscape-bot]

Repository health increased by 11% when pulling ea5e52d on develop into 1b220c8 on master.

• 32 new problems were found (including 1 error and 19 code smells).
• 107 problems were fixed (including 3 errors and 90 code smells).