IDEA-116593 improve choosing of Android and Java SDKs when creating new android-gradle project/module:
choose only Android SDK location (if we don't know it) on first step, not build target;
choose Java SDK (if there is no any) separately, set it as project sdk and as internal jdk for newly created android sdk entities
(cherry picked from commit 2bf19b4)
IDEA-118601 New Module: Maven: click on "Create from archetype" reverts typed coordinates
(cherry picked from commit d94c9a1)
Bug fix: check not-null
(cherry picked from commit 6b54183)