#34 Various fixes

Sapludināts

sindre sapludināja 3 revīzijas no minor uz master pirms 5 gadiem

Autors	SHA1	Ziņojums	Datums
Sindre Stephansen	9491cfd5dd	Implement stricter password policy Fixes #22	pirms 5 gadiem
Sindre Stephansen	9892487c44	Implement better password security The new scheme uses bcrypt and a random salt for each user. This is not compatible with old passwords. Fixes #13	pirms 5 gadiem
Sindre Stephansen	94dc16a0bb	Optimize Docker build	pirms 5 gadiem