Release 0.4

Release 0.4 chagelog:

Balance:

1. Machines breakdown probability reduced

Changes:

1. Learning skills and specializations is now automated. The player just needs to choose what to learn.

Improvements:

1. Machines and buildings provide descriptions what they actually do.

2. Machines and buildings indicate what's preventing the player from buying them.

3. Field menu shows why the player can't harvest

4. Bank shows how many loans we can get and how much for each

Translation fixes:

1. Missing wells and sprinklers translations in most languages including German

2. Broken Chineese translation fix

3. Extra colons removed

4. Missing translations for crops menu

5. Minor typos

Fixes:

1. Unused question mark button removed

2. Wrong sowing price fix

3. Cannot sell produce bug fix