[IMPROVED] Versioned password hashing support

Addresses #2047
[ADDED] Upgrades hashes after pin/password update
[ADDED] HASH_VERSION for easier hash upgrades
[FIX] HTTP(s) Detection on Mail Templates
Merge pull request #2135 from MPOS/hashing-improvements

Hashing improvements
[ADDED] Timezone support for user accounts
[FIX] Re-new timezone on account update
[SQL] Base structure updated
[UPDATE] UTC as default timezone (ID 415)
[FIX] Merge conflict
[REMOVED] Old select box for timezones
[UPDATE] jquery to version 2.1.0
[UPDATE] resize motd in settings
Merge pull request #2136 from iAmShorty/jquery-update

[UPDATE] jquery to version 2.1.0
Merge pull request #2137 from iAmShorty/motd-resize

[UPDATE] resize motd in settings
[Fix] Correctly hash new password
Merge pull request #2138 from barrybingo/development

[Fix] Correctly hash new password
Merge pull request #2131 from MPOS/timezone-support

[ADDED] Timezone support
[FIX] Merge with development
[FIX] Merge conflict with development