S2 CF19 Fixes reset password page by not allowing to reuse token
S2 CF19 Adds project picture and min amount per contribution for Project.
https://vinsol.atlassian.net/browse/CF-19
S2 CF19 Adds PDF type for legal documents and fixes error messages on invalid uploads
https://vinsol.atlassian.net/browse/CF-19
Merge pull request #20 from udit7590/s2_bugfixes

S2 CF19 Bugfixes